149642252 has 12 divisors (see below), whose sum is σ = 275656920. Its totient is φ = 70883136.

The previous prime is 149642237. The next prime is 149642261. The reversal of 149642252 is 252246941.

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, 984413 + ... + 984564.

It is an arithmetic number, because the mean of its divisors is an integer number (22971410).

Almost surely, 2^149642252 is an apocalyptic number.

It is an amenable number.

149642252 is a deficient number, since it is larger than the sum of its proper divisors (126014668).

149642252 is a wasteful number, since it uses less digits than its factorization.

149642252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1969000 (or 1968998 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 149642252 is about 12232.8349943911. The cubic root of 149642252 is about 530.9065439162.

The spelling of 149642252 in words is "one hundred forty-nine million, six hundred forty-two thousand, two hundred fifty-two".