16090831 has 2 divisors, whose sum is σ = 16090832. Its totient is φ = 16090830.

The previous prime is 16090793. The next prime is 16090843. The reversal of 16090831 is 13809061.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16090831 - 2⁷ = 16090703 is a prime.

It is a super-2 number, since 2×16090831² = 517829684541122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16090831.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16090931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8045415 + 8045416.

It is an arithmetic number, because the mean of its divisors is an integer number (8045416).

Almost surely, 2^16090831 is an apocalyptic number.

16090831 is a deficient number, since it is larger than the sum of its proper divisors (1).

16090831 is an equidigital number, since it uses as much as digits as its factorization.

16090831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 16090831 is about 4011.3378067672. The cubic root of 16090831 is about 252.4601433676.

Adding to 16090831 its reverse (13809061), we get a palindrome (29899892).

The spelling of 16090831 in words is "sixteen million, ninety thousand, eight hundred thirty-one".