149166025 has 12 divisors (see below), whose sum is σ = 186697872. Its totient is φ = 118215440.

The previous prime is 149166019. The next prime is 149166067. The reversal of 149166025 is 520661941.

It is a de Polignac number, because none of the positive numbers 2^k-149166025 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25207 + ... + 30556.

It is an arithmetic number, because the mean of its divisors is an integer number (15558156).

Almost surely, 2^149166025 is an apocalyptic number.

It is an amenable number.

149166025 is a deficient number, since it is larger than the sum of its proper divisors (37531847).

149166025 is a wasteful number, since it uses less digits than its factorization.

149166025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55880 (or 55875 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 149166025 is about 12213.3543713429. The cubic root of 149166025 is about 530.3427532537.

The spelling of 149166025 in words is "one hundred forty-nine million, one hundred sixty-six thousand, twenty-five".