140635513 has 2 divisors, whose sum is σ = 140635514. Its totient is φ = 140635512.

The previous prime is 140635507. The next prime is 140635567. The reversal of 140635513 is 315536041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115605504 + 25030009 = 10752^2 + 5003^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140635513 is a prime.

It is not a weakly prime, because it can be changed into another prime (140635013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70317756 + 70317757.

It is an arithmetic number, because the mean of its divisors is an integer number (70317757).

Almost surely, 2^140635513 is an apocalyptic number.

It is an amenable number.

140635513 is a deficient number, since it is larger than the sum of its proper divisors (1).

140635513 is an equidigital number, since it uses as much as digits as its factorization.

140635513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 140635513 is about 11858.9844843477. The cubic root of 140635513 is about 520.0339142082.

The spelling of 140635513 in words is "one hundred forty million, six hundred thirty-five thousand, five hundred thirteen".