127400137 has 2 divisors, whose sum is σ = 127400138. Its totient is φ = 127400136.

The previous prime is 127400131. The next prime is 127400179. The reversal of 127400137 is 731004721.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72403081 + 54997056 = 8509^2 + 7416^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127400137 is a prime.

It is not a weakly prime, because it can be changed into another prime (127400131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63700068 + 63700069.

It is an arithmetic number, because the mean of its divisors is an integer number (63700069).

Almost surely, 2^127400137 is an apocalyptic number.

It is an amenable number.

127400137 is a deficient number, since it is larger than the sum of its proper divisors (1).

127400137 is an equidigital number, since it uses as much as digits as its factorization.

127400137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 127400137 is about 11287.1669164587. The cubic root of 127400137 is about 503.1799160612.

Adding to 127400137 its reverse (731004721), we get a palindrome (858404858).

The spelling of 127400137 in words is "one hundred twenty-seven million, four hundred thousand, one hundred thirty-seven".