1315538923 has 2 divisors, whose sum is σ = 1315538924. Its totient is φ = 1315538922.

The previous prime is 1315538899. The next prime is 1315539013. The reversal of 1315538923 is 3298355131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1315538923 - 2²⁵ = 1281984491 is a prime.

It is a super-3 number, since 3×1315538923³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1315532923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657769461 + 657769462.

It is an arithmetic number, because the mean of its divisors is an integer number (657769462).

Almost surely, 2^1315538923 is an apocalyptic number.

1315538923 is a deficient number, since it is larger than the sum of its proper divisors (1).

1315538923 is an equidigital number, since it uses as much as digits as its factorization.

1315538923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97200, while the sum is 40.

The square root of 1315538923 is about 36270.3587382314. The cubic root of 1315538923 is about 1095.7241508682.

The spelling of 1315538923 in words is "one billion, three hundred fifteen million, five hundred thirty-eight thousand, nine hundred twenty-three".