23140573 has 4 divisors (see below), whose sum is σ = 23150268. Its totient is φ = 23130880.

The previous prime is 23140571. The next prime is 23140589. The reversal of 23140573 is 37504132.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 9018009 + 14122564 = 3003^2 + 3758^2 .

It is a cyclic number.

It is not a de Polignac number, because 23140573 - 2¹ = 23140571 is a prime.

It is a super-2 number, since 2×23140573² = 1070972237536658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23140571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1533 + ... + 6973.

It is an arithmetic number, because the mean of its divisors is an integer number (5787567).

Almost surely, 2^23140573 is an apocalyptic number.

It is an amenable number.

23140573 is a deficient number, since it is larger than the sum of its proper divisors (9695).

23140573 is an equidigital number, since it uses as much as digits as its factorization.

23140573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9694.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 23140573 is about 4810.4649463435. The cubic root of 23140573 is about 284.9648997503.

It can be divided in two parts, 231 and 40573, that added together give a palindrome (40804).

The spelling of 23140573 in words is "twenty-three million, one hundred forty thousand, five hundred seventy-three".