23136212 has 24 divisors (see below), whose sum is σ = 44416512. Its totient is φ = 10457600.

The previous prime is 23136203. The next prime is 23136221. The reversal of 23136212 is 21263132.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23136203) and next prime (23136221).

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, 7028 + ... + 9780.

It is an arithmetic number, because the mean of its divisors is an integer number (1850688).

Almost surely, 2^23136212 is an apocalyptic number.

23136212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

23136212 is a deficient number, since it is larger than the sum of its proper divisors (21280300).

23136212 is a wasteful number, since it uses less digits than its factorization.

23136212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2959 (or 2957 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 23136212 is about 4810.0116423976. The cubic root of 23136212 is about 284.9469974278.

Adding to 23136212 its reverse (21263132), we get a palindrome (44399344).

Subtracting from 23136212 its reverse (21263132), we obtain a triangular number (1873080 = T₁₉₃₅).

The spelling of 23136212 in words is "twenty-three million, one hundred thirty-six thousand, two hundred twelve".