309134120732 has 24 divisors (see below), whose sum is σ = 559661474064. Its totient is φ = 149291828352.

The previous prime is 309134120717. The next prime is 309134120753. The reversal of 309134120732 is 237021431903.

It is a junction number, because it is equal to n+sod(n) for n = 309134120692 and 309134120701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7602878 + ... + 7643429.

It is an arithmetic number, because the mean of its divisors is an integer number (23319228086).

Almost surely, 2^309134120732 is an apocalyptic number.

It is an amenable number.

309134120732 is a deficient number, since it is larger than the sum of its proper divisors (250527353332).

309134120732 is a wasteful number, since it uses less digits than its factorization.

309134120732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15246485 (or 15246483 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 35.

The spelling of 309134120732 in words is "three hundred nine billion, one hundred thirty-four million, one hundred twenty thousand, seven hundred thirty-two".