615314923 has 2 divisors, whose sum is σ = 615314924. Its totient is φ = 615314922.

The previous prime is 615314899. The next prime is 615314951. The reversal of 615314923 is 329413516.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 615314923 - 2⁵ = 615314891 is a prime.

It is a super-2 number, since 2×615314923² = 757224908932991858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (615314723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307657461 + 307657462.

It is an arithmetic number, because the mean of its divisors is an integer number (307657462).

Almost surely, 2^615314923 is an apocalyptic number.

615314923 is a deficient number, since it is larger than the sum of its proper divisors (1).

615314923 is an equidigital number, since it uses as much as digits as its factorization.

615314923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 34.

The square root of 615314923 is about 24805.5421831493. The cubic root of 615314923 is about 850.5486298954.

The spelling of 615314923 in words is "six hundred fifteen million, three hundred fourteen thousand, nine hundred twenty-three".