156730142731 has 2 divisors, whose sum is σ = 156730142732. Its totient is φ = 156730142730.

The previous prime is 156730142719. The next prime is 156730142741. The reversal of 156730142731 is 137241037651.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 156730142731 - 2¹¹ = 156730140683 is a prime.

It is a super-2 number, since 2×156730142731² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (156730142741) 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, 78365071365 + 78365071366.

It is an arithmetic number, because the mean of its divisors is an integer number (78365071366).

Almost surely, 2^156730142731 is an apocalyptic number.

156730142731 is a deficient number, since it is larger than the sum of its proper divisors (1).

156730142731 is an equidigital number, since it uses as much as digits as its factorization.

156730142731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840, while the sum is 40.

The spelling of 156730142731 in words is "one hundred fifty-six billion, seven hundred thirty million, one hundred forty-two thousand, seven hundred thirty-one".