652331144 has 8 divisors (see below), whose sum is σ = 1223120910. Its totient is φ = 326165568.

The previous prime is 652331093. The next prime is 652331209. The reversal of 652331144 is 441133256.

It can be written as a sum of positive squares in only one way, i.e., 555544900 + 96786244 = 23570^2 + 9838^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40770689 + ... + 40770704.

Almost surely, 2^652331144 is an apocalyptic number.

It is an amenable number.

652331144 is a deficient number, since it is larger than the sum of its proper divisors (570789766).

652331144 is a wasteful number, since it uses less digits than its factorization.

652331144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81541399 (or 81541395 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

The square root of 652331144 is about 25540.7741464506. The cubic root of 652331144 is about 867.2734227093.

The spelling of 652331144 in words is "six hundred fifty-two million, three hundred thirty-one thousand, one hundred forty-four".