149402725 has 18 divisors (see below), whose sum is σ = 188899926. Its totient is φ = 117187200.

The previous prime is 149402713. The next prime is 149402741. The reversal of 149402725 is 527204941.

It can be written as a sum of positive squares in 9 ways, for example, as 149279524 + 123201 = 12218^2 + 351^2 .

It is a de Polignac number, because none of the positive numbers 2^k-149402725 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 477169 + ... + 477481.

Almost surely, 2^149402725 is an apocalyptic number.

It is an amenable number.

149402725 is a deficient number, since it is larger than the sum of its proper divisors (39497201).

149402725 is an frugal number, since it uses more digits than its factorization.

149402725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697 (or 379 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 149402725 is about 12223.0407427939. The cubic root of 149402725 is about 530.6231249382.

The spelling of 149402725 in words is "one hundred forty-nine million, four hundred two thousand, seven hundred twenty-five".