149723592457 has 2 divisors, whose sum is σ = 149723592458. Its totient is φ = 149723592456.

The previous prime is 149723592439. The next prime is 149723592493. The reversal of 149723592457 is 754295327941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112562934016 + 37160658441 = 335504^2 + 192771^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149723592457 is a prime.

It is not a weakly prime, because it can be changed into another prime (149723592427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74861796228 + 74861796229.

It is an arithmetic number, because the mean of its divisors is an integer number (74861796229).

Almost surely, 2^149723592457 is an apocalyptic number.

It is an amenable number.

149723592457 is a deficient number, since it is larger than the sum of its proper divisors (1).

149723592457 is an equidigital number, since it uses as much as digits as its factorization.

149723592457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19051200, while the sum is 58.

The spelling of 149723592457 in words is "one hundred forty-nine billion, seven hundred twenty-three million, five hundred ninety-two thousand, four hundred fifty-seven".