23145727 has 12 divisors (see below), whose sum is σ = 25596648. Its totient is φ = 20913200.

The previous prime is 23145713. The next prime is 23145791. The reversal of 23145727 is 72754132.

It is not a de Polignac number, because 23145727 - 2¹⁵ = 23112959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23145527) 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, 23352 + ... + 24322.

It is an arithmetic number, because the mean of its divisors is an integer number (2133054).

Almost surely, 2^23145727 is an apocalyptic number.

23145727 is a deficient number, since it is larger than the sum of its proper divisors (2450921).

23145727 is a wasteful number, since it uses less digits than its factorization.

23145727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190 (or 1179 counting only the distinct ones).

The product of its digits is 11760, while the sum is 31.

The square root of 23145727 is about 4811.0006235709. Note that the first 3 decimals coincide. The cubic root of 23145727 is about 284.9860545141.

Adding to 23145727 its reverse (72754132), we get a palindrome (95899859).

The spelling of 23145727 in words is "twenty-three million, one hundred forty-five thousand, seven hundred twenty-seven".