149203925 has 12 divisors (see below), whose sum is σ = 199245060. Its totient is φ = 110181120.

The previous prime is 149203909. The next prime is 149203931. The reversal of 149203925 is 529302941.

It can be written as a sum of positive squares in 6 ways, for example, as 19562929 + 129640996 = 4423^2 + 11386^2 .

It is not a de Polignac number, because 149203925 - 2⁴ = 149203909 is a prime.

It is a super-2 number, since 2×149203925² = 44523622470811250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 229220 + ... + 229869.

It is an arithmetic number, because the mean of its divisors is an integer number (16603755).

Almost surely, 2^149203925 is an apocalyptic number.

It is an amenable number.

149203925 is a deficient number, since it is larger than the sum of its proper divisors (50041135).

149203925 is a wasteful number, since it uses less digits than its factorization.

149203925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459112 (or 459107 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 149203925 is about 12214.9058530960. The cubic root of 149203925 is about 530.3876658229.

The spelling of 149203925 in words is "one hundred forty-nine million, two hundred three thousand, nine hundred twenty-five".