23042237 has 2 divisors, whose sum is σ = 23042238. Its totient is φ = 23042236.

The previous prime is 23042221. The next prime is 23042249. The reversal of 23042237 is 73224032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15319396 + 7722841 = 3914^2 + 2779^2 .

It is a cyclic number.

It is not a de Polignac number, because 23042237 - 2⁴ = 23042221 is a prime.

It is a Chen prime.

It is equal to p_1450760 and since 23042237 and 1450760 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23042137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11521118 + 11521119.

It is an arithmetic number, because the mean of its divisors is an integer number (11521119).

Almost surely, 2^23042237 is an apocalyptic number.

It is an amenable number.

23042237 is a deficient number, since it is larger than the sum of its proper divisors (1).

23042237 is an equidigital number, since it uses as much as digits as its factorization.

23042237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 23042237 is about 4800.2330151775. The cubic root of 23042237 is about 284.5606732861.

Adding to 23042237 its reverse (73224032), we get a palindrome (96266269).

The spelling of 23042237 in words is "twenty-three million, forty-two thousand, two hundred thirty-seven".