23313149 has 2 divisors, whose sum is σ = 23313150. Its totient is φ = 23313148.

The previous prime is 23313113. The next prime is 23313161. The reversal of 23313149 is 94131332.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21576025 + 1737124 = 4645^2 + 1318^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23313149 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 (23313449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11656574 + 11656575.

It is an arithmetic number, because the mean of its divisors is an integer number (11656575).

Almost surely, 2^23313149 is an apocalyptic number.

It is an amenable number.

23313149 is a deficient number, since it is larger than the sum of its proper divisors (1).

23313149 is an equidigital number, since it uses as much as digits as its factorization.

23313149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 26.

The square root of 23313149 is about 4828.3691863817. The cubic root of 23313149 is about 285.6715424987.

The spelling of 23313149 in words is "twenty-three million, three hundred thirteen thousand, one hundred forty-nine".