23145471 has 12 divisors (see below), whose sum is σ = 34063848. Its totient is φ = 15138864.

The previous prime is 23145469. The next prime is 23145487. The reversal of 23145471 is 17454132.

It is not a de Polignac number, because 23145471 - 2¹ = 23145469 is a prime.

It is a super-3 number, since 3×23145471³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23145071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23785 + ... + 24738.

It is an arithmetic number, because the mean of its divisors is an integer number (2838654).

Almost surely, 2^23145471 is an apocalyptic number.

23145471 is a deficient number, since it is larger than the sum of its proper divisors (10918377).

23145471 is a wasteful number, since it uses less digits than its factorization.

23145471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48582 (or 48579 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 23145471 is about 4810.9740178055. The cubic root of 23145471 is about 284.9850038277.

The spelling of 23145471 in words is "twenty-three million, one hundred forty-five thousand, four hundred seventy-one".