23142869 has 2 divisors, whose sum is σ = 23142870. Its totient is φ = 23142868.

The previous prime is 23142863. The next prime is 23142881. The reversal of 23142869 is 96824132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18576100 + 4566769 = 4310^2 + 2137^2 .

It is a cyclic number.

It is not a de Polignac number, because 23142869 - 2¹⁶ = 23077333 is a prime.

It is a super-2 number, since 2×23142869² = 1071184771102322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23142863) 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, 11571434 + 11571435.

It is an arithmetic number, because the mean of its divisors is an integer number (11571435).

Almost surely, 2^23142869 is an apocalyptic number.

It is an amenable number.

23142869 is a deficient number, since it is larger than the sum of its proper divisors (1).

23142869 is an equidigital number, since it uses as much as digits as its factorization.

23142869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 35.

The square root of 23142869 is about 4810.7035867948. The cubic root of 23142869 is about 284.9743241463.

The spelling of 23142869 in words is "twenty-three million, one hundred forty-two thousand, eight hundred sixty-nine".