23202149 has 2 divisors, whose sum is σ = 23202150. Its totient is φ = 23202148.

The previous prime is 23202133. The next prime is 23202169. The reversal of 23202149 is 94120232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23136100 + 66049 = 4810^2 + 257^2 .

It is a cyclic number.

It is not a de Polignac number, because 23202149 - 2⁴ = 23202133 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23202169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11601074 + 11601075.

It is an arithmetic number, because the mean of its divisors is an integer number (11601075).

Almost surely, 2^23202149 is an apocalyptic number.

It is an amenable number.

23202149 is a deficient number, since it is larger than the sum of its proper divisors (1).

23202149 is an equidigital number, since it uses as much as digits as its factorization.

23202149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 23202149 is about 4816.8609072715. The cubic root of 23202149 is about 285.2174353828.

The spelling of 23202149 in words is "twenty-three million, two hundred two thousand, one hundred forty-nine".