125153920442 has 16 divisors (see below), whose sum is σ = 189244876392. Its totient is φ = 62072989440.

The previous prime is 125153920429. The next prime is 125153920477. The reversal of 125153920442 is 244029351521.

It is a Cunningham number, because it is equal to 353771²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 125153920441 + 1 = 353771^2 + 1^2 .

It is a junction number, because it is equal to n+sod(n) for n = 125153920396 and 125153920405.

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, 189068 + ... + 534840.

Almost surely, 2^125153920442 is an apocalyptic number.

125153920442 is a deficient number, since it is larger than the sum of its proper divisors (64090955950).

125153920442 is a wasteful number, since it uses less digits than its factorization.

125153920442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347233.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 125153920442 in words is "one hundred twenty-five billion, one hundred fifty-three million, nine hundred twenty thousand, four hundred forty-two".