127140137 has 2 divisors, whose sum is σ = 127140138. Its totient is φ = 127140136.

The previous prime is 127140053. The next prime is 127140179. The reversal of 127140137 is 731041721.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65108761 + 62031376 = 8069^2 + 7876^2 .

It is a cyclic number.

It is not a de Polignac number, because 127140137 - 2¹⁰ = 127139113 is a prime.

It is a super-2 number, since 2×127140137² = 32329228872757538, which contains 22 as substring.

It is equal to p_7225019 and since 127140137 and 7225019 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (127140337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63570068 + 63570069.

It is an arithmetic number, because the mean of its divisors is an integer number (63570069).

Almost surely, 2^127140137 is an apocalyptic number.

It is an amenable number.

127140137 is a deficient number, since it is larger than the sum of its proper divisors (1).

127140137 is an equidigital number, since it uses as much as digits as its factorization.

127140137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 127140137 is about 11275.6435293069. The cubic root of 127140137 is about 502.8373840461.

Adding to 127140137 its reverse (731041721), we get a palindrome (858181858).

The spelling of 127140137 in words is "one hundred twenty-seven million, one hundred forty thousand, one hundred thirty-seven".