23142459 has 4 divisors (see below), whose sum is σ = 30856616. Its totient is φ = 15428304.

The previous prime is 23142421. The next prime is 23142463. The reversal of 23142459 is 95424132.

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

It is not a de Polignac number, because 23142459 - 2⁷ = 23142331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23142419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3857074 + ... + 3857079.

It is an arithmetic number, because the mean of its divisors is an integer number (7714154).

Almost surely, 2^23142459 is an apocalyptic number.

23142459 is a deficient number, since it is larger than the sum of its proper divisors (7714157).

23142459 is an equidigital number, since it uses as much as digits as its factorization.

23142459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7714156.

The product of its digits is 8640, while the sum is 30.

The square root of 23142459 is about 4810.6609732967. The cubic root of 23142459 is about 284.9726412642.

The spelling of 23142459 in words is "twenty-three million, one hundred forty-two thousand, four hundred fifty-nine".