23154022 has 4 divisors (see below), whose sum is σ = 34731036. Its totient is φ = 11577010.

The previous prime is 23154011. The next prime is 23154029. The reversal of 23154022 is 22045132.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×23154022² = 1072217469552968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23154029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5788504 + ... + 5788507.

It is an arithmetic number, because the mean of its divisors is an integer number (8682759).

Almost surely, 2^23154022 is an apocalyptic number.

23154022 is a deficient number, since it is larger than the sum of its proper divisors (11577014).

23154022 is a wasteful number, since it uses less digits than its factorization.

23154022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11577013.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 23154022 is about 4811.8626331183. The cubic root of 23154022 is about 285.0200950230.

Adding to 23154022 its reverse (22045132), we get a palindrome (45199154).

The spelling of 23154022 in words is "twenty-three million, one hundred fifty-four thousand, twenty-two".