156313999997 has 2 divisors, whose sum is σ = 156313999998. Its totient is φ = 156313999996.

The previous prime is 156313999993. The next prime is 156314000023. The reversal of 156313999997 is 799999313651.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92166280921 + 64147719076 = 303589^2 + 253274^2 .

It is a cyclic number.

It is not a de Polignac number, because 156313999997 - 2² = 156313999993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 156313999997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (156313999993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78156999998 + 78156999999.

It is an arithmetic number, because the mean of its divisors is an integer number (78156999999).

Almost surely, 2^156313999997 is an apocalyptic number.

It is an amenable number.

156313999997 is a deficient number, since it is larger than the sum of its proper divisors (1).

156313999997 is an equidigital number, since it uses as much as digits as its factorization.

156313999997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 111602610, while the sum is 71.

The spelling of 156313999997 in words is "one hundred fifty-six billion, three hundred thirteen million, nine hundred ninety-nine thousand, nine hundred ninety-seven".