15140431309 has 2 divisors, whose sum is σ = 15140431310. Its totient is φ = 15140431308.

The previous prime is 15140431303. The next prime is 15140431351. The reversal of 15140431309 is 90313404151.

15140431309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14468481225 + 671950084 = 120285^2 + 25922^2 .

It is a cyclic number.

It is not a de Polignac number, because 15140431309 - 2⁵ = 15140431277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15140431303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7570215654 + 7570215655.

It is an arithmetic number, because the mean of its divisors is an integer number (7570215655).

Almost surely, 2^15140431309 is an apocalyptic number.

It is an amenable number.

15140431309 is a deficient number, since it is larger than the sum of its proper divisors (1).

15140431309 is an equidigital number, since it uses as much as digits as its factorization.

15140431309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 31.

The spelling of 15140431309 in words is "fifteen billion, one hundred forty million, four hundred thirty-one thousand, three hundred nine".