16225831 has 2 divisors, whose sum is σ = 16225832. Its totient is φ = 16225830.

The previous prime is 16225823. The next prime is 16225841. The reversal of 16225831 is 13852261.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16225831 - 2³ = 16225823 is a prime.

It is a super-2 number, since 2×16225831² = 526555183281122, 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 16225831.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16225841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8112915 + 8112916.

It is an arithmetic number, because the mean of its divisors is an integer number (8112916).

Almost surely, 2^16225831 is an apocalyptic number.

16225831 is a deficient number, since it is larger than the sum of its proper divisors (1).

16225831 is an equidigital number, since it uses as much as digits as its factorization.

16225831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 28.

The square root of 16225831 is about 4028.1299631467. The cubic root of 16225831 is about 253.1642140334.

The spelling of 16225831 in words is "sixteen million, two hundred twenty-five thousand, eight hundred thirty-one".