1297190608 has 20 divisors (see below), whose sum is σ = 2872350880. Its totient is φ = 555938784.

The previous prime is 1297190599. The next prime is 1297190611. The reversal of 1297190608 is 8060917921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5790918 + ... + 5791141.

It is an arithmetic number, because the mean of its divisors is an integer number (143617544).

Almost surely, 2^1297190608 is an apocalyptic number.

It is an amenable number.

1297190608 is an abundant number, since it is smaller than the sum of its proper divisors (1575160272).

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

1297190608 is a wasteful number, since it uses less digits than its factorization.

1297190608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11582074 (or 11582068 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 43.

The square root of 1297190608 is about 36016.5324260957. The cubic root of 1297190608 is about 1090.6061236219.

The spelling of 1297190608 in words is "one billion, two hundred ninety-seven million, one hundred ninety thousand, six hundred eight".