23185315 has 12 divisors (see below), whose sum is σ = 28216944. Its totient is φ = 18288816.

The previous prime is 23185271. The next prime is 23185321. The reversal of 23185315 is 51358132.

It is not a de Polignac number, because 23185315 - 2¹⁷ = 23054243 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30834 + ... + 31576.

It is an arithmetic number, because the mean of its divisors is an integer number (2351412).

Almost surely, 2^23185315 is an apocalyptic number.

23185315 is a deficient number, since it is larger than the sum of its proper divisors (5031629).

23185315 is an frugal number, since it uses more digits than its factorization.

23185315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906 (or 827 counting only the distinct ones).

The product of its digits is 3600, while the sum is 28.

The square root of 23185315 is about 4815.1131866240. The cubic root of 23185315 is about 285.1484401652.

The spelling of 23185315 in words is "twenty-three million, one hundred eighty-five thousand, three hundred fifteen".