23149069 has 2 divisors, whose sum is σ = 23149070. Its totient is φ = 23149068.

The previous prime is 23149037. The next prime is 23149081. The reversal of 23149069 is 96094132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19096900 + 4052169 = 4370^2 + 2013^2 .

It is a cyclic number.

It is not a de Polignac number, because 23149069 - 2⁵ = 23149037 is a prime.

It is a super-2 number, since 2×23149069² = 1071758791133522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23149369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11574534 + 11574535.

It is an arithmetic number, because the mean of its divisors is an integer number (11574535).

Almost surely, 2^23149069 is an apocalyptic number.

It is an amenable number.

23149069 is a deficient number, since it is larger than the sum of its proper divisors (1).

23149069 is an equidigital number, since it uses as much as digits as its factorization.

23149069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 23149069 is about 4811.3479400268. The cubic root of 23149069 is about 284.9997701855. Note that the first 3 decimals are identical.

The spelling of 23149069 in words is "twenty-three million, one hundred forty-nine thousand, sixty-nine".