140525665 has 16 divisors (see below), whose sum is σ = 194198400. Its totient is φ = 95621760.

The previous prime is 140525659. The next prime is 140525711. The reversal of 140525665 is 566525041.

It is not a de Polignac number, because 140525665 - 2⁵ = 140525633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140525665.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10740 + ... + 19909.

It is an arithmetic number, because the mean of its divisors is an integer number (12137400).

Almost surely, 2^140525665 is an apocalyptic number.

It is an amenable number.

140525665 is a deficient number, since it is larger than the sum of its proper divisors (53672735).

140525665 is a wasteful number, since it uses less digits than its factorization.

140525665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30792.

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 140525665 is about 11854.3521543777. The cubic root of 140525665 is about 519.8984824013.

The spelling of 140525665 in words is "one hundred forty million, five hundred twenty-five thousand, six hundred sixty-five".