147921568 has 24 divisors (see below), whose sum is σ = 291532500. Its totient is φ = 73881600.

The previous prime is 147921559. The next prime is 147921619. The reversal of 147921568 is 865129741.

It can be written as a sum of positive squares in 2 ways, for example, as 146603664 + 1317904 = 12108^2 + 1148^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38118 + ... + 41818.

Almost surely, 2^147921568 is an apocalyptic number.

It is an amenable number.

147921568 is a deficient number, since it is larger than the sum of its proper divisors (143610932).

147921568 is a wasteful number, since it uses less digits than its factorization.

147921568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4960 (or 4952 counting only the distinct ones).

The product of its digits is 120960, while the sum is 43.

The square root of 147921568 is about 12162.3010980653. The cubic root of 147921568 is about 528.8637911757.

It can be divided in two parts, 14792 and 1568, that multiplied together give a square (23193856 = 4816²).

The spelling of 147921568 in words is "one hundred forty-seven million, nine hundred twenty-one thousand, five hundred sixty-eight".