23145469 has 2 divisors, whose sum is σ = 23145470. Its totient is φ = 23145468.

The previous prime is 23145457. The next prime is 23145487. The reversal of 23145469 is 96454132.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20702500 + 2442969 = 4550^2 + 1563^2 .

It is a cyclic number.

It is not a de Polignac number, because 23145469 - 2²¹ = 21048317 is a prime.

It is a super-2 number, since 2×23145469² = 1071425470459922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23145569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11572734 + 11572735.

It is an arithmetic number, because the mean of its divisors is an integer number (11572735).

Almost surely, 2^23145469 is an apocalyptic number.

It is an amenable number.

23145469 is a deficient number, since it is larger than the sum of its proper divisors (1).

23145469 is an equidigital number, since it uses as much as digits as its factorization.

23145469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 34.

The square root of 23145469 is about 4810.9738099474. The cubic root of 23145469 is about 284.9849956192.

The spelling of 23145469 in words is "twenty-three million, one hundred forty-five thousand, four hundred sixty-nine".