16231499 has 2 divisors, whose sum is σ = 16231500. Its totient is φ = 16231498.

The previous prime is 16231483. The next prime is 16231513. The reversal of 16231499 is 99413261.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16231499 - 2⁴ = 16231483 is a prime.

It is not a weakly prime, because it can be changed into another prime (16231459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8115749 + 8115750.

It is an arithmetic number, because the mean of its divisors is an integer number (8115750).

Almost surely, 2^16231499 is an apocalyptic number.

16231499 is a deficient number, since it is larger than the sum of its proper divisors (1).

16231499 is an equidigital number, since it uses as much as digits as its factorization.

16231499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 35.

The square root of 16231499 is about 4028.8334539914. The cubic root of 16231499 is about 253.1936890048.

The spelling of 16231499 in words is "sixteen million, two hundred thirty-one thousand, four hundred ninety-nine".