149640544 has 24 divisors (see below), whose sum is σ = 296932608. Its totient is φ = 74229120.

The previous prime is 149640539. The next prime is 149640577. The reversal of 149640544 is 445046941.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 14347 + ... + 22474.

It is an arithmetic number, because the mean of its divisors is an integer number (12372192).

Almost surely, 2^149640544 is an apocalyptic number.

It is an amenable number.

149640544 is a deficient number, since it is larger than the sum of its proper divisors (147292064).

149640544 is a wasteful number, since it uses less digits than its factorization.

149640544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36958 (or 36950 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 149640544 is about 12232.7651820837. The cubic root of 149640544 is about 530.9045240058.

The spelling of 149640544 in words is "one hundred forty-nine million, six hundred forty thousand, five hundred forty-four".