12523151 has 2 divisors, whose sum is σ = 12523152. Its totient is φ = 12523150.

The previous prime is 12523139. The next prime is 12523153. The reversal of 12523151 is 15132521.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (15132521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12523151 - 2²² = 8328847 is a prime.

It is a Sophie Germain prime.

Together with 12523153, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p₈₂₀₁₃₆ and since 12523151 and 820136 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 (12523153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6261575 + 6261576.

It is an arithmetic number, because the mean of its divisors is an integer number (6261576).

Almost surely, 2^12523151 is an apocalyptic number.

12523151 is a deficient number, since it is larger than the sum of its proper divisors (1).

12523151 is an equidigital number, since it uses as much as digits as its factorization.

12523151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 300, while the sum is 20.

The square root of 12523151 is about 3538.8064372045. The cubic root of 12523151 is about 232.2226298824. Note that the first 3 decimals are identical.

Adding to 12523151 its reverse (15132521), we get a palindrome (27655672).

The spelling of 12523151 in words is "twelve million, five hundred twenty-three thousand, one hundred fifty-one".