23135867 has 2 divisors, whose sum is σ = 23135868. Its totient is φ = 23135866.

The previous prime is 23135851. The next prime is 23135869. The reversal of 23135867 is 76853132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23135867 - 2⁴ = 23135851 is a prime.

Together with 23135869, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23135869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11567933 + 11567934.

It is an arithmetic number, because the mean of its divisors is an integer number (11567934).

Almost surely, 2^23135867 is an apocalyptic number.

23135867 is a deficient number, since it is larger than the sum of its proper divisors (1).

23135867 is an equidigital number, since it uses as much as digits as its factorization.

23135867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 35.

The square root of 23135867 is about 4809.9757795648. The cubic root of 23135867 is about 284.9455810738.

Adding to 23135867 its reverse (76853132), we get a palindrome (99988999).

The spelling of 23135867 in words is "twenty-three million, one hundred thirty-five thousand, eight hundred sixty-seven".