140645013 has 4 divisors (see below), whose sum is σ = 187526688. Its totient is φ = 93763340.

The previous prime is 140645003. The next prime is 140645033. The reversal of 140645013 is 310546041.

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 a cyclic number.

It is not a de Polignac number, because 140645013 - 2⁴ = 140644997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140645003) 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, 23440833 + ... + 23440838.

It is an arithmetic number, because the mean of its divisors is an integer number (46881672).

Almost surely, 2^140645013 is an apocalyptic number.

It is an amenable number.

140645013 is a deficient number, since it is larger than the sum of its proper divisors (46881675).

140645013 is an equidigital number, since it uses as much as digits as its factorization.

140645013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46881674.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 140645013 is about 11859.3850177823. The cubic root of 140645013 is about 520.0456234625.

The spelling of 140645013 in words is "one hundred forty million, six hundred forty-five thousand, thirteen".