23515234 has 4 divisors (see below), whose sum is σ = 35272854. Its totient is φ = 11757616.

The previous prime is 23515213. The next prime is 23515249. The reversal of 23515234 is 43251532.

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., 23474025 + 41209 = 4845^2 + 203^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23515199 and 23515208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5878807 + ... + 5878810.

Almost surely, 2^23515234 is an apocalyptic number.

23515234 is a deficient number, since it is larger than the sum of its proper divisors (11757620).

23515234 is a wasteful number, since it uses less digits than its factorization.

23515234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11757619.

The product of its digits is 3600, while the sum is 25.

The square root of 23515234 is about 4849.2508699798. The cubic root of 23515234 is about 286.4945962735.

Adding to 23515234 its reverse (43251532), we get a palindrome (66766766).

The spelling of 23515234 in words is "twenty-three million, five hundred fifteen thousand, two hundred thirty-four".