1351020 has 96 divisors (see below), whose sum is σ = 4354560. Its totient is φ = 309760.

The previous prime is 1351019. The next prime is 1351027. The reversal of 1351020 is 201531.

1351020 = T₂₁₉ + T₂₂₀ + ... + T₂₆₄.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1350987 and 1351005.

It is not an unprimeable number, because it can be changed into a prime (1351027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15136 + ... + 15224.

It is an arithmetic number, because the mean of its divisors is an integer number (45360).

2^1351020 is an apocalyptic number.

1351020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1351020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2177280).

1351020 is an abundant number, since it is smaller than the sum of its proper divisors (3003540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1351020 is a wasteful number, since it uses less digits than its factorization.

1351020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 1351020 is about 1162.3338590956. Note that the first 3 decimals coincide. The cubic root of 1351020 is about 110.5487728565.

Adding to 1351020 its reverse (201531), we get a palindrome (1552551).

It can be divided in two parts, 13510 and 20, that added together give a triangular number (13530 = T₁₆₄).

The spelling of 1351020 in words is "one million, three hundred fifty-one thousand, twenty".