12138151 has 2 divisors, whose sum is σ = 12138152. Its totient is φ = 12138150.

The previous prime is 12138127. The next prime is 12138157. The reversal of 12138151 is 15183121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12138151 - 2⁷ = 12138023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12138157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6069075 + 6069076.

It is an arithmetic number, because the mean of its divisors is an integer number (6069076).

Almost surely, 2^12138151 is an apocalyptic number.

12138151 is a deficient number, since it is larger than the sum of its proper divisors (1).

12138151 is an equidigital number, since it uses as much as digits as its factorization.

12138151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 240, while the sum is 22.

The square root of 12138151 is about 3483.9849310811. The cubic root of 12138151 is about 229.8180728971.

The spelling of 12138151 in words is "twelve million, one hundred thirty-eight thousand, one hundred fifty-one".