23115151 has 2 divisors, whose sum is σ = 23115152. Its totient is φ = 23115150.

The previous prime is 23115149. The next prime is 23115173. The reversal of 23115151 is 15151132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23115151 - 2¹ = 23115149 is a prime.

Together with 23115149, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23115451) by changing a digit.

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, 11557575 + 11557576.

It is an arithmetic number, because the mean of its divisors is an integer number (11557576).

Almost surely, 2^23115151 is an apocalyptic number.

23115151 is a deficient number, since it is larger than the sum of its proper divisors (1).

23115151 is an equidigital number, since it uses as much as digits as its factorization.

23115151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 150, while the sum is 19.

The square root of 23115151 is about 4807.8218561007. The cubic root of 23115151 is about 284.8605083254.

Adding to 23115151 its reverse (15151132), we get a palindrome (38266283).

The spelling of 23115151 in words is "twenty-three million, one hundred fifteen thousand, one hundred fifty-one".