23142458 has 4 divisors (see below), whose sum is σ = 34713690. Its totient is φ = 11571228.

The previous prime is 23142421. The next prime is 23142463. The reversal of 23142458 is 85424132.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 14922769 + 8219689 = 3863^2 + 2867^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23142458.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5785613 + ... + 5785616.

Almost surely, 2^23142458 is an apocalyptic number.

23142458 is a deficient number, since it is larger than the sum of its proper divisors (11571232).

23142458 is a wasteful number, since it uses less digits than its factorization.

23142458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11571231.

The product of its digits is 7680, while the sum is 29.

The square root of 23142458 is about 4810.6608693609. The cubic root of 23142458 is about 284.9726371596.

The spelling of 23142458 in words is "twenty-three million, one hundred forty-two thousand, four hundred fifty-eight".