23071136 has 24 divisors (see below), whose sum is σ = 49551264. Its totient is φ = 10486720.

The previous prime is 23071133. The next prime is 23071141. The reversal of 23071136 is 63117032.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (23071133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32420 + ... + 33123.

It is an arithmetic number, because the mean of its divisors is an integer number (2064636).

Almost surely, 2^23071136 is an apocalyptic number.

It is an amenable number.

23071136 is an abundant number, since it is smaller than the sum of its proper divisors (26480128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23071136 is a wasteful number, since it uses less digits than its factorization.

23071136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65564 (or 65556 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 23071136 is about 4803.2422383219. The cubic root of 23071136 is about 284.6795865580.

Adding to 23071136 its reverse (63117032), we get a palindrome (86188168).

It can be divided in two parts, 2307 and 1136, that added together give a palindrome (3443).

The spelling of 23071136 in words is "twenty-three million, seventy-one thousand, one hundred thirty-six".