23142974 has 4 divisors (see below), whose sum is σ = 34714464. Its totient is φ = 11571486.

The previous prime is 23142949. The next prime is 23142979. The reversal of 23142974 is 47924132.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 23142974.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23142979) by changing a digit.

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 as a sum of consecutive naturals, namely, 5785742 + ... + 5785745.

It is an arithmetic number, because the mean of its divisors is an integer number (8678616).

Almost surely, 2^23142974 is an apocalyptic number.

23142974 is a deficient number, since it is larger than the sum of its proper divisors (11571490).

23142974 is a wasteful number, since it uses less digits than its factorization.

23142974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11571489.

The product of its digits is 12096, while the sum is 32.

The square root of 23142974 is about 4810.7144999470. The cubic root of 23142974 is about 284.9747551252.

The spelling of 23142974 in words is "twenty-three million, one hundred forty-two thousand, nine hundred seventy-four".