23145271 has 2 divisors, whose sum is σ = 23145272. Its totient is φ = 23145270.

The previous prime is 23145209. The next prime is 23145281. The reversal of 23145271 is 17254132.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23145271 - 2²¹ = 21048119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23145281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11572635 + 11572636.

It is an arithmetic number, because the mean of its divisors is an integer number (11572636).

Almost surely, 2^23145271 is an apocalyptic number.

23145271 is a deficient number, since it is larger than the sum of its proper divisors (1).

23145271 is an equidigital number, since it uses as much as digits as its factorization.

23145271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 25.

The square root of 23145271 is about 4810.9532319489. The cubic root of 23145271 is about 284.9841829736.

The spelling of 23145271 in words is "twenty-three million, one hundred forty-five thousand, two hundred seventy-one".