1302120 has 48 divisors (see below), whose sum is σ = 4233060. Its totient is φ = 347136.

The previous prime is 1302107. The next prime is 1302121. The reversal of 1302120 is 212031.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1077444 + 224676 = 1038^2 + 474^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1302121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1449 + ... + 2168.

2^1302120 is an apocalyptic number.

1302120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1302120 is an abundant number, since it is smaller than the sum of its proper divisors (2930940).

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

1302120 is a wasteful number, since it uses less digits than its factorization.

1302120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3634 (or 3627 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1302120 is about 1141.1047278843. The cubic root of 1302120 is about 109.1985830835.

Adding to 1302120 its reverse (212031), we get a palindrome (1514151).

It can be divided in two parts, 13021 and 20, that added together give a triangular number (13041 = T₁₆₁).

The spelling of 1302120 in words is "one million, three hundred two thousand, one hundred twenty".