23142487 has 2 divisors, whose sum is σ = 23142488. Its totient is φ = 23142486.

The previous prime is 23142481. The next prime is 23142499. The reversal of 23142487 is 78424132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23142487 - 2¹⁹ = 22618199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23142481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11571243 + 11571244.

It is an arithmetic number, because the mean of its divisors is an integer number (11571244).

Almost surely, 2^23142487 is an apocalyptic number.

23142487 is a deficient number, since it is larger than the sum of its proper divisors (1).

23142487 is an equidigital number, since it uses as much as digits as its factorization.

23142487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10752, while the sum is 31.

The square root of 23142487 is about 4810.6638834988. The cubic root of 23142487 is about 284.9727561934.

The spelling of 23142487 in words is "twenty-three million, one hundred forty-two thousand, four hundred eighty-seven".