31464046157 has 2 divisors, whose sum is σ = 31464046158. Its totient is φ = 31464046156.

The previous prime is 31464046153. The next prime is 31464046169. The reversal of 31464046157 is 75164046413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26317275076 + 5146771081 = 162226^2 + 71741^2 .

It is a cyclic number.

It is not a de Polignac number, because 31464046157 - 2² = 31464046153 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31464046153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15732023078 + 15732023079.

It is an arithmetic number, because the mean of its divisors is an integer number (15732023079).

Almost surely, 2^31464046157 is an apocalyptic number.

It is an amenable number.

31464046157 is a deficient number, since it is larger than the sum of its proper divisors (1).

31464046157 is an equidigital number, since it uses as much as digits as its factorization.

31464046157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 31464046157 in words is "thirty-one billion, four hundred sixty-four million, forty-six thousand, one hundred fifty-seven".