140146564 has 12 divisors (see below), whose sum is σ = 246528604. Its totient is φ = 69709824.

The previous prime is 140146537. The next prime is 140146577. The reversal of 140146564 is 465641041.

It can be written as a sum of positive squares in 2 ways, for example, as 57881664 + 82264900 = 7608^2 + 9070^2 .

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 in 3 ways as a sum of consecutive naturals, for example, 89997 + ... + 91540.

Almost surely, 2^140146564 is an apocalyptic number.

It is an amenable number.

140146564 is a deficient number, since it is larger than the sum of its proper divisors (106382040).

140146564 is a wasteful number, since it uses less digits than its factorization.

140146564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181734 (or 181732 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 140146564 is about 11838.3514054956. The cubic root of 140146564 is about 519.4305452538.

The spelling of 140146564 in words is "one hundred forty million, one hundred forty-six thousand, five hundred sixty-four".