23190361 has 4 divisors (see below), whose sum is σ = 23200000. Its totient is φ = 23180724.

The previous prime is 23190359. The next prime is 23190389. The reversal of 23190361 is 16309132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 23190361 - 2¹ = 23190359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23190311) 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, 2140 + ... + 7138.

It is an arithmetic number, because the mean of its divisors is an integer number (5800000).

Almost surely, 2^23190361 is an apocalyptic number.

It is an amenable number.

23190361 is a deficient number, since it is larger than the sum of its proper divisors (9639).

23190361 is an equidigital number, since it uses as much as digits as its factorization.

23190361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9638.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 23190361 is about 4815.6371333397. The cubic root of 23190361 is about 285.1691250205.

Adding to 23190361 its reverse (16309132), we get a palindrome (39499493).

The spelling of 23190361 in words is "twenty-three million, one hundred ninety thousand, three hundred sixty-one".