23154242 has 8 divisors (see below), whose sum is σ = 34812876. Its totient is φ = 11549952.

The previous prime is 23154239. The next prime is 23154251. The reversal of 23154242 is 24245132.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 22743361 + 410881 = 4769^2 + 641^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×23154242² = 1072237845189128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12503 + ... + 14234.

Almost surely, 2^23154242 is an apocalyptic number.

23154242 is a deficient number, since it is larger than the sum of its proper divisors (11658634).

23154242 is a wasteful number, since it uses less digits than its factorization.

23154242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27172.

The product of its digits is 1920, while the sum is 23.

The square root of 23154242 is about 4811.8854932344. The cubic root of 23154242 is about 285.0209977348.

Adding to 23154242 its reverse (24245132), we get a palindrome (47399374).

The spelling of 23154242 in words is "twenty-three million, one hundred fifty-four thousand, two hundred forty-two".