1297489508 has 24 divisors (see below), whose sum is σ = 2665115712. Its totient is φ = 541037664.

The previous prime is 1297489507. The next prime is 1297489511. The reversal of 1297489508 is 8059847921.

It is a self number, because there is not a number n which added to its sum of digits gives 1297489508.

It is not an unprimeable number, because it can be changed into a prime (1297489507) 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, 625166 + ... + 627237.

It is an arithmetic number, because the mean of its divisors is an integer number (111046488).

Almost surely, 2^1297489508 is an apocalyptic number.

It is an amenable number.

1297489508 is an abundant number, since it is smaller than the sum of its proper divisors (1367626204).

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

1297489508 is a wasteful number, since it uses less digits than its factorization.

1297489508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252451 (or 1252449 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 53.

The square root of 1297489508 is about 36020.6816703960. The cubic root of 1297489508 is about 1090.6898833855.

The spelling of 1297489508 in words is "one billion, two hundred ninety-seven million, four hundred eighty-nine thousand, five hundred eight".