23161469 has 4 divisors (see below), whose sum is σ = 23172540. Its totient is φ = 23150400.

The previous prime is 23161451. The next prime is 23161499. The reversal of 23161469 is 96416132.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 17222500 + 5938969 = 4150^2 + 2437^2 .

It is a cyclic number.

It is not a de Polignac number, because 23161469 - 2¹² = 23157373 is a prime.

It is a super-2 number, since 2×23161469² = 1072907292475922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23161409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1334 + ... + 6935.

It is an arithmetic number, because the mean of its divisors is an integer number (5793135).

Almost surely, 2^23161469 is an apocalyptic number.

It is an amenable number.

23161469 is a deficient number, since it is larger than the sum of its proper divisors (11071).

23161469 is an equidigital number, since it uses as much as digits as its factorization.

23161469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11070.

The product of its digits is 7776, while the sum is 32.

The square root of 23161469 is about 4812.6363876778. The cubic root of 23161469 is about 285.0506486367.

The spelling of 23161469 in words is "twenty-three million, one hundred sixty-one thousand, four hundred sixty-nine".