23415151 has 4 divisors (see below), whose sum is σ = 24222600. Its totient is φ = 22607704.

The previous prime is 23415149. The next prime is 23415167. The reversal of 23415151 is 15151432.

It is a happy number.

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

It is not a de Polignac number, because 23415151 - 2¹ = 23415149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23415101) 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, 403681 + ... + 403738.

It is an arithmetic number, because the mean of its divisors is an integer number (6055650).

Almost surely, 2^23415151 is an apocalyptic number.

23415151 is a deficient number, since it is larger than the sum of its proper divisors (807449).

23415151 is an equidigital number, since it uses as much as digits as its factorization.

23415151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807448.

The product of its digits is 600, while the sum is 22.

The square root of 23415151 is about 4838.9204374530. The cubic root of 23415151 is about 286.0875691553.

Adding to 23415151 its reverse (15151432), we get a palindrome (38566583).

The spelling of 23415151 in words is "twenty-three million, four hundred fifteen thousand, one hundred fifty-one".