140972513 has 4 divisors (see below), whose sum is σ = 153788208. Its totient is φ = 128156820.

The previous prime is 140972453. The next prime is 140972519. The reversal of 140972513 is 315279041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 140972513 - 2¹² = 140968417 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140972513.

It is not an unprimeable number, because it can be changed into a prime (140972519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6407831 + ... + 6407852.

It is an arithmetic number, because the mean of its divisors is an integer number (38447052).

Almost surely, 2^140972513 is an apocalyptic number.

It is an amenable number.

140972513 is a deficient number, since it is larger than the sum of its proper divisors (12815695).

140972513 is a wasteful number, since it uses less digits than its factorization.

140972513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12815694.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 140972513 is about 11873.1846191323. The cubic root of 140972513 is about 520.4489626040.

The spelling of 140972513 in words is "one hundred forty million, nine hundred seventy-two thousand, five hundred thirteen".