23161151 has 8 divisors (see below), whose sum is σ = 25352544. Its totient is φ = 21028320.

The previous prime is 23161139. The next prime is 23161199. The reversal of 23161151 is 15116132.

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

It is a cyclic number.

It is not a de Polignac number, because 23161151 - 2¹⁰ = 23160127 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 (23161051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13811 + ... + 15396.

It is an arithmetic number, because the mean of its divisors is an integer number (3169068).

Almost surely, 2^23161151 is an apocalyptic number.

23161151 is a deficient number, since it is larger than the sum of its proper divisors (2191393).

23161151 is a wasteful number, since it uses less digits than its factorization.

23161151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29281.

The product of its digits is 180, while the sum is 20.

The square root of 23161151 is about 4812.6033495396. The cubic root of 23161151 is about 285.0493440775.

Adding to 23161151 its reverse (15116132), we get a palindrome (38277283).

The spelling of 23161151 in words is "twenty-three million, one hundred sixty-one thousand, one hundred fifty-one".