23136830 has 16 divisors (see below), whose sum is σ = 44096400. Its totient is φ = 8710272.

The previous prime is 23136829. The next prime is 23136853. The reversal of 23136830 is 3863132.

It is a self number, because there is not a number n which added to its sum of digits gives 23136830.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67880 + ... + 68219.

It is an arithmetic number, because the mean of its divisors is an integer number (2756025).

Almost surely, 2^23136830 is an apocalyptic number.

23136830 is a deficient number, since it is larger than the sum of its proper divisors (20959570).

23136830 is a wasteful number, since it uses less digits than its factorization.

23136830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136123.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 23136830 is about 4810.0758829773. The cubic root of 23136830 is about 284.9495345138.

Adding to 23136830 its reverse (3863132), we get a palindrome (26999962).

The spelling of 23136830 in words is "twenty-three million, one hundred thirty-six thousand, eight hundred thirty".