1297190120 has 16 divisors (see below), whose sum is σ = 2918677860. Its totient is φ = 518876032.

The previous prime is 1297190119. The next prime is 1297190123. The reversal of 1297190120 is 210917921.

It can be written as a sum of positive squares in 2 ways, for example, as 1245666436 + 51523684 = 35294^2 + 7178^2 .

It is a super-2 number, since 2×1297190120² = 3365404414851228800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1297190123) 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, 16214837 + ... + 16214916.

Almost surely, 2^1297190120 is an apocalyptic number.

1297190120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1297190120 is an abundant number, since it is smaller than the sum of its proper divisors (1621487740).

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

1297190120 is a wasteful number, since it uses less digits than its factorization.

1297190120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32429764 (or 32429760 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 32.

The square root of 1297190120 is about 36016.5256514284. The cubic root of 1297190120 is about 1090.6059868608.

The spelling of 1297190120 in words is "one billion, two hundred ninety-seven million, one hundred ninety thousand, one hundred twenty".