23477143 has 2 divisors, whose sum is σ = 23477144. Its totient is φ = 23477142.

The previous prime is 23477123. The next prime is 23477149. The reversal of 23477143 is 34177432.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23477143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23477149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11738571 + 11738572.

It is an arithmetic number, because the mean of its divisors is an integer number (11738572).

Almost surely, 2^23477143 is an apocalyptic number.

23477143 is a deficient number, since it is larger than the sum of its proper divisors (1).

23477143 is an equidigital number, since it uses as much as digits as its factorization.

23477143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14112, while the sum is 31.

The square root of 23477143 is about 4845.3217643414. The cubic root of 23477143 is about 286.3398205317.

It can be divided in two parts, 234 and 77143, that added together give a palindrome (77377).

The spelling of 23477143 in words is "twenty-three million, four hundred seventy-seven thousand, one hundred forty-three".