140205015256 has 16 divisors (see below), whose sum is σ = 266808052440. Its totient is φ = 69056201280.

The previous prime is 140205015241. The next prime is 140205015283. The reversal of 140205015256 is 652510502041.

It is a congruent number.

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, 130787725 + ... + 130788796.

Almost surely, 2^140205015256 is an apocalyptic number.

It is an amenable number.

140205015256 is a deficient number, since it is larger than the sum of its proper divisors (126603037184).

140205015256 is a wasteful number, since it uses less digits than its factorization.

140205015256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261576594 (or 261576590 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 140205015256 its reverse (652510502041), we get a palindrome (792715517297).

The spelling of 140205015256 in words is "one hundred forty billion, two hundred five million, fifteen thousand, two hundred fifty-six".