149215652 has 6 divisors (see below), whose sum is σ = 261127398. Its totient is φ = 74607824.

The previous prime is 149215639. The next prime is 149215667. The reversal of 149215652 is 256512941.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 149181796 + 33856 = 12214^2 + 184^2 .

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 as a sum of consecutive naturals, namely, 18651953 + ... + 18651960.

It is an arithmetic number, because the mean of its divisors is an integer number (43521233).

Almost surely, 2^149215652 is an apocalyptic number.

It is an amenable number.

149215652 is a deficient number, since it is larger than the sum of its proper divisors (111911746).

149215652 is a wasteful number, since it uses less digits than its factorization.

149215652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37303917 (or 37303915 counting only the distinct ones).

The product of its digits is 21600, while the sum is 35.

The square root of 149215652 is about 12215.3858719240. The cubic root of 149215652 is about 530.4015611079.

The spelling of 149215652 in words is "one hundred forty-nine million, two hundred fifteen thousand, six hundred fifty-two".