140626613 has 4 divisors (see below), whose sum is σ = 140714988. Its totient is φ = 140538240.

The previous prime is 140626609. The next prime is 140626637. The reversal of 140626613 is 316626041.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 89832484 + 50794129 = 9478^2 + 7127^2 .

It is a cyclic number.

It is not a de Polignac number, because 140626613 - 2² = 140626609 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140626663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41756 + ... + 44997.

It is an arithmetic number, because the mean of its divisors is an integer number (35178747).

Almost surely, 2^140626613 is an apocalyptic number.

It is an amenable number.

140626613 is a deficient number, since it is larger than the sum of its proper divisors (88375).

140626613 is an equidigital number, since it uses as much as digits as its factorization.

140626613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88374.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 140626613 is about 11858.6092354879. The cubic root of 140626613 is about 520.0229440073.

The spelling of 140626613 in words is "one hundred forty million, six hundred twenty-six thousand, six hundred thirteen".