23257143 has 48 divisors (see below), whose sum is σ = 42020160. Its totient is φ = 12068352.

The previous prime is 23257141. The next prime is 23257147. The reversal of 23257143 is 34175232.

It is not a de Polignac number, because 23257143 - 2¹ = 23257141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23257141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 59593 + ... + 59981.

It is an arithmetic number, because the mean of its divisors is an integer number (875420).

Almost surely, 2^23257143 is an apocalyptic number.

23257143 is a deficient number, since it is larger than the sum of its proper divisors (18763017).

23257143 is a wasteful number, since it uses less digits than its factorization.

23257143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488 (or 485 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 23257143 is about 4822.5660182106. The cubic root of 23257143 is about 285.4425994611.

It can be divided in two parts, 232 and 57143, that added together give a palindrome (57375).

The spelling of 23257143 in words is "twenty-three million, two hundred fifty-seven thousand, one hundred forty-three".