23142819 has 16 divisors (see below), whose sum is σ = 36126720. Its totient is φ = 12901440.

The previous prime is 23142811. The next prime is 23142839. The reversal of 23142819 is 91824132.

It is not a de Polignac number, because 23142819 - 2³ = 23142811 is a prime.

It is a super-2 number, since 2×23142819² = 1071180142533522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23142811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12579 + ... + 14300.

It is an arithmetic number, because the mean of its divisors is an integer number (2257920).

Almost surely, 2^23142819 is an apocalyptic number.

23142819 is a deficient number, since it is larger than the sum of its proper divisors (12983901).

23142819 is a wasteful number, since it uses less digits than its factorization.

23142819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26930.

The product of its digits is 3456, while the sum is 30.

The square root of 23142819 is about 4810.6983900469. The cubic root of 23142819 is about 284.9741189179.

The spelling of 23142819 in words is "twenty-three million, one hundred forty-two thousand, eight hundred nineteen".