23189293 has 2 divisors, whose sum is σ = 23189294. Its totient is φ = 23189292.

The previous prime is 23189279. The next prime is 23189347. The reversal of 23189293 is 39298132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23011209 + 178084 = 4797^2 + 422^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23189293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23189203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11594646 + 11594647.

It is an arithmetic number, because the mean of its divisors is an integer number (11594647).

Almost surely, 2^23189293 is an apocalyptic number.

It is an amenable number.

23189293 is a deficient number, since it is larger than the sum of its proper divisors (1).

23189293 is an equidigital number, since it uses as much as digits as its factorization.

23189293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 37.

The square root of 23189293 is about 4815.5262433092. The cubic root of 23189293 is about 285.1647472634.

It can be divided in two parts, 2318 and 9293, that added together give a palindrome (11611).

The spelling of 23189293 in words is "twenty-three million, one hundred eighty-nine thousand, two hundred ninety-three".