23142136 has 16 divisors (see below), whose sum is σ = 43880400. Its totient is φ = 11440704.

The previous prime is 23142107. The next prime is 23142157. The reversal of 23142136 is 63124132.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 15540 + ... + 16963.

It is an arithmetic number, because the mean of its divisors is an integer number (2742525).

Almost surely, 2^23142136 is an apocalyptic number.

It is an amenable number.

23142136 is a deficient number, since it is larger than the sum of its proper divisors (20738264).

23142136 is a wasteful number, since it uses less digits than its factorization.

23142136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32598 (or 32594 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 23142136 is about 4810.6274019092. The cubic root of 23142136 is about 284.9713154674.

Adding to 23142136 its reverse (63124132), we get a palindrome (86266268).

The spelling of 23142136 in words is "twenty-three million, one hundred forty-two thousand, one hundred thirty-six".