1351320 has 32 divisors (see below), whose sum is σ = 4054320. Its totient is φ = 360320.

The previous prime is 1351309. The next prime is 1351327. The reversal of 1351320 is 231531.

1351320 = 16² + 17² + ... + 159².

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1351320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1351327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5511 + ... + 5750.

2^1351320 is an apocalyptic number.

1351320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1351320 is an abundant number, since it is smaller than the sum of its proper divisors (2703000).

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

1351320 is a wasteful number, since it uses less digits than its factorization.

1351320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11275 (or 11271 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 1351320 is about 1162.4629026339. The cubic root of 1351320 is about 110.5569548665.

Adding to 1351320 its reverse (231531), we get a palindrome (1582851).

The spelling of 1351320 in words is "one million, three hundred fifty-one thousand, three hundred twenty".