23287151 has 2 divisors, whose sum is σ = 23287152. Its totient is φ = 23287150.

The previous prime is 23287129. The next prime is 23287157. The reversal of 23287151 is 15178232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23287151 - 2¹⁰ = 23286127 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is equal to p_1465184 and since 23287151 and 1465184 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23287157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11643575 + 11643576.

It is an arithmetic number, because the mean of its divisors is an integer number (11643576).

Almost surely, 2^23287151 is an apocalyptic number.

23287151 is a deficient number, since it is larger than the sum of its proper divisors (1).

23287151 is an equidigital number, since it uses as much as digits as its factorization.

23287151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 29.

The square root of 23287151 is about 4825.6762220439. The cubic root of 23287151 is about 285.5653127310.

The spelling of 23287151 in words is "twenty-three million, two hundred eighty-seven thousand, one hundred fifty-one".