149440385525 has 24 divisors (see below), whose sum is σ = 185719821504. Its totient is φ = 119285654400.

The previous prime is 149440385513. The next prime is 149440385533. The reversal of 149440385525 is 525583044941.

It is not a de Polignac number, because 149440385525 - 2²⁸ = 149171950069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38208320 + ... + 38212230.

It is an arithmetic number, because the mean of its divisors is an integer number (7738325896).

Almost surely, 2^149440385525 is an apocalyptic number.

It is an amenable number.

149440385525 is a deficient number, since it is larger than the sum of its proper divisors (36279435979).

149440385525 is a wasteful number, since it uses less digits than its factorization.

149440385525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6941 (or 6936 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 50.

The spelling of 149440385525 in words is "one hundred forty-nine billion, four hundred forty million, three hundred eighty-five thousand, five hundred twenty-five".