149555992 has 32 divisors (see below), whose sum is σ = 295959600. Its totient is φ = 70654464.

The previous prime is 149555981. The next prime is 149556037. The reversal of 149555992 is 299555941.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68388 + ... + 70540.

Almost surely, 2^149555992 is an apocalyptic number.

It is an amenable number.

149555992 is a deficient number, since it is larger than the sum of its proper divisors (146403608).

149555992 is a wasteful number, since it uses less digits than its factorization.

149555992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2635 (or 2631 counting only the distinct ones).

The product of its digits is 729000, while the sum is 49.

The square root of 149555992 is about 12229.3087294417. The cubic root of 149555992 is about 530.8045121254.

The spelling of 149555992 in words is "one hundred forty-nine million, five hundred fifty-five thousand, nine hundred ninety-two".