140206564 has 12 divisors (see below), whose sum is σ = 246137724. Its totient is φ = 69881504.

The previous prime is 140206559. The next prime is 140206589. The reversal of 140206564 is 465602041.

It can be written as a sum of positive squares in 2 ways, for example, as 51696100 + 88510464 = 7190^2 + 9408^2 .

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, 54019 + ... + 56554.

It is an arithmetic number, because the mean of its divisors is an integer number (20511477).

Almost surely, 2^140206564 is an apocalyptic number.

It is an amenable number.

140206564 is a deficient number, since it is larger than the sum of its proper divisors (105931160).

140206564 is a wasteful number, since it uses less digits than its factorization.

140206564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110894 (or 110892 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 140206564 is about 11840.8852709584. The cubic root of 140206564 is about 519.5046614392.

The spelling of 140206564 in words is "one hundred forty million, two hundred six thousand, five hundred sixty-four".