23223137 has 4 divisors (see below), whose sum is σ = 26540736. Its totient is φ = 19905540.

The previous prime is 23223107. The next prime is 23223143. The reversal of 23223137 is 73132232.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23223137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23223107) 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, 1658789 + ... + 1658802.

It is an arithmetic number, because the mean of its divisors is an integer number (6635184).

Almost surely, 2^23223137 is an apocalyptic number.

It is an amenable number.

23223137 is a deficient number, since it is larger than the sum of its proper divisors (3317599).

23223137 is an equidigital number, since it uses as much as digits as its factorization.

23223137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3317598.

The product of its digits is 1512, while the sum is 23.

The square root of 23223137 is about 4819.0390120853. The cubic root of 23223137 is about 285.3034093081.

Adding to 23223137 its reverse (73132232), we get a palindrome (96355369).

The spelling of 23223137 in words is "twenty-three million, two hundred twenty-three thousand, one hundred thirty-seven".