127512149 has 2 divisors, whose sum is σ = 127512150. Its totient is φ = 127512148.

The previous prime is 127512127. The next prime is 127512163. The reversal of 127512149 is 941215721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126720049 + 792100 = 11257^2 + 890^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127512149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127512109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63756074 + 63756075.

It is an arithmetic number, because the mean of its divisors is an integer number (63756075).

Almost surely, 2^127512149 is an apocalyptic number.

It is an amenable number.

127512149 is a deficient number, since it is larger than the sum of its proper divisors (1).

127512149 is an equidigital number, since it uses as much as digits as its factorization.

127512149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 32.

The square root of 127512149 is about 11292.1277445838. The cubic root of 127512149 is about 503.3273404936.

The spelling of 127512149 in words is "one hundred twenty-seven million, five hundred twelve thousand, one hundred forty-nine".