30925457137 has 2 divisors, whose sum is σ = 30925457138. Its totient is φ = 30925457136.

The previous prime is 30925457131. The next prime is 30925457161. The reversal of 30925457137 is 73175452903.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15667278561 + 15258178576 = 125169^2 + 123524^2 .

It is a cyclic number.

It is not a de Polignac number, because 30925457137 - 2³¹ = 28777973489 is a prime.

It is not a weakly prime, because it can be changed into another prime (30925457131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15462728568 + 15462728569.

It is an arithmetic number, because the mean of its divisors is an integer number (15462728569).

Almost surely, 2^30925457137 is an apocalyptic number.

It is an amenable number.

30925457137 is a deficient number, since it is larger than the sum of its proper divisors (1).

30925457137 is an equidigital number, since it uses as much as digits as its factorization.

30925457137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 793800, while the sum is 46.

The spelling of 30925457137 in words is "thirty billion, nine hundred twenty-five million, four hundred fifty-seven thousand, one hundred thirty-seven".