140536013 has 4 divisors (see below), whose sum is σ = 140598240. Its totient is φ = 140473788.

The previous prime is 140535977. The next prime is 140536021. The reversal of 140536013 is 310635041.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 310635041 = 8501 ⋅36541.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140536013 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 140536013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140536043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27593 + ... + 32286.

It is an arithmetic number, because the mean of its divisors is an integer number (35149560).

Almost surely, 2^140536013 is an apocalyptic number.

It is an amenable number.

140536013 is a deficient number, since it is larger than the sum of its proper divisors (62227).

140536013 is an equidigital number, since it uses as much as digits as its factorization.

140536013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62226.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 140536013 is about 11854.7886105152. The cubic root of 140536013 is about 519.9112434806.

The spelling of 140536013 in words is "one hundred forty million, five hundred thirty-six thousand, thirteen".