156746994149 has 2 divisors, whose sum is σ = 156746994150. Its totient is φ = 156746994148.

The previous prime is 156746994037. The next prime is 156746994167. The reversal of 156746994149 is 941499647651.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 156276321124 + 470673025 = 395318^2 + 21695^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-156746994149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (156746994949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78373497074 + 78373497075.

It is an arithmetic number, because the mean of its divisors is an integer number (78373497075).

Almost surely, 2^156746994149 is an apocalyptic number.

It is an amenable number.

156746994149 is a deficient number, since it is larger than the sum of its proper divisors (1).

156746994149 is an equidigital number, since it uses as much as digits as its factorization.

156746994149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58786560, while the sum is 65.

The spelling of 156746994149 in words is "one hundred fifty-six billion, seven hundred forty-six million, nine hundred ninety-four thousand, one hundred forty-nine".