1415231999 has 2 divisors, whose sum is σ = 1415232000. Its totient is φ = 1415231998.

The previous prime is 1415231989. The next prime is 1415232017. The reversal of 1415231999 is 9991325141.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1415231999 - 2⁸ = 1415231743 is a prime.

It is a super-2 number, since 2×1415231999² = 4005763221987072002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1415231959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 707615999 + 707616000.

It is an arithmetic number, because the mean of its divisors is an integer number (707616000).

Almost surely, 2^1415231999 is an apocalyptic number.

1415231999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1415231999 is an equidigital number, since it uses as much as digits as its factorization.

1415231999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 87480, while the sum is 44.

The square root of 1415231999 is about 37619.5693622349. The cubic root of 1415231999 is about 1122.7314282178.

The spelling of 1415231999 in words is "one billion, four hundred fifteen million, two hundred thirty-one thousand, nine hundred ninety-nine".