13140652621 has 2 divisors, whose sum is σ = 13140652622. Its totient is φ = 13140652620.

The previous prime is 13140652541. The next prime is 13140652661. The reversal of 13140652621 is 12625604131.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10558590025 + 2582062596 = 102755^2 + 50814^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13140652621 is a prime.

It is a super-3 number, since 3×13140652621³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13140652661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6570326310 + 6570326311.

It is an arithmetic number, because the mean of its divisors is an integer number (6570326311).

Almost surely, 2^13140652621 is an apocalyptic number.

It is an amenable number.

13140652621 is a deficient number, since it is larger than the sum of its proper divisors (1).

13140652621 is an equidigital number, since it uses as much as digits as its factorization.

13140652621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 13140652621 in words is "thirteen billion, one hundred forty million, six hundred fifty-two thousand, six hundred twenty-one".