23154154 has 4 divisors (see below), whose sum is σ = 34731234. Its totient is φ = 11577076.

The previous prime is 23154143. The next prime is 23154161. The reversal of 23154154 is 45145132.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 20948929 + 2205225 = 4577^2 + 1485^2 .

It is a super-2 number, since 2×23154154² = 1072229694911432, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5788537 + ... + 5788540.

Almost surely, 2^23154154 is an apocalyptic number.

23154154 is a deficient number, since it is larger than the sum of its proper divisors (11577080).

23154154 is a wasteful number, since it uses less digits than its factorization.

23154154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11577079.

The product of its digits is 2400, while the sum is 25.

The square root of 23154154 is about 4811.8763492010. The cubic root of 23154154 is about 285.0206366507.

Adding to 23154154 its reverse (45145132), we get a palindrome (68299286).

The spelling of 23154154 in words is "twenty-three million, one hundred fifty-four thousand, one hundred fifty-four".