149605918 has 48 divisors (see below), whose sum is σ = 287140464. Its totient is φ = 57805440.

The previous prime is 149605903. The next prime is 149605957. The reversal of 149605918 is 819506941.

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, 147180 + ... + 148192.

It is an arithmetic number, because the mean of its divisors is an integer number (5982093).

Almost surely, 2^149605918 is an apocalyptic number.

149605918 is a deficient number, since it is larger than the sum of its proper divisors (137534546).

149605918 is a wasteful number, since it uses less digits than its factorization.

149605918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177 (or 1170 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 149605918 is about 12231.3498028631. The cubic root of 149605918 is about 530.8635713833.

The spelling of 149605918 in words is "one hundred forty-nine million, six hundred five thousand, nine hundred eighteen".