1296520 has 16 divisors (see below), whose sum is σ = 2917260. Its totient is φ = 518592.

The previous prime is 1296511. The next prime is 1296521. The reversal of 1296520 is 256921.

It can be written as a sum of positive squares in 2 ways, for example, as 1258884 + 37636 = 1122^2 + 194^2 .

It is a super-2 number, since 2×1296520² = 3361928220800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1296521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16167 + ... + 16246.

2^1296520 is an apocalyptic number.

1296520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1296520 is an abundant number, since it is smaller than the sum of its proper divisors (1620740).

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

1296520 is a wasteful number, since it uses less digits than its factorization.

1296520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32424 (or 32420 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 1296520 is about 1138.6483214760. The cubic root of 1296520 is about 109.0418154520.

The spelling of 1296520 in words is "one million, two hundred ninety-six thousand, five hundred twenty".