1297608039 has 32 divisors (see below), whose sum is σ = 2366013440. Its totient is φ = 684451296.

The previous prime is 1297608029. The next prime is 1297608047. The reversal of 1297608039 is 9308067921.

1297608039 is a `hidden beast` number, since 1 + 2 + 9 + 7 + 608 + 0 + 39 = 666.

It is not a de Polignac number, because 1297608039 - 2⁴ = 1297608023 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1297607985 and 1297608003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1297608029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 261607 + ... + 266520.

It is an arithmetic number, because the mean of its divisors is an integer number (73937920).

Almost surely, 2^1297608039 is an apocalyptic number.

1297608039 is a deficient number, since it is larger than the sum of its proper divisors (1068405401).

1297608039 is a wasteful number, since it uses less digits than its factorization.

1297608039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528156 (or 528150 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 1297608039 is about 36022.3269514894. The cubic root of 1297608039 is about 1090.7230953756.

The spelling of 1297608039 in words is "one billion, two hundred ninety-seven million, six hundred eight thousand, thirty-nine".