12489151 has 2 divisors, whose sum is σ = 12489152. Its totient is φ = 12489150.

The previous prime is 12489143. The next prime is 12489157. The reversal of 12489151 is 15198421.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12489151 - 2³ = 12489143 is a prime.

It is a Chen prime.

It is equal to p₈₁₈₀₆₈ and since 12489151 and 818068 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 (12489157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6244575 + 6244576.

It is an arithmetic number, because the mean of its divisors is an integer number (6244576).

Almost surely, 2^12489151 is an apocalyptic number.

12489151 is a deficient number, since it is larger than the sum of its proper divisors (1).

12489151 is an equidigital number, since it uses as much as digits as its factorization.

12489151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 31.

The square root of 12489151 is about 3533.9992925862. Note that the first 3 decimals coincide. The cubic root of 12489151 is about 232.0122801169.

The spelling of 12489151 in words is "twelve million, four hundred eighty-nine thousand, one hundred fifty-one".