127331137 has 2 divisors, whose sum is σ = 127331138. Its totient is φ = 127331136.

The previous prime is 127331129. The next prime is 127331153. The reversal of 127331137 is 731133721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69205761 + 58125376 = 8319^2 + 7624^2 .

It is a cyclic number.

It is not a de Polignac number, because 127331137 - 2³ = 127331129 is a prime.

It is not a weakly prime, because it can be changed into another prime (127332137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63665568 + 63665569.

It is an arithmetic number, because the mean of its divisors is an integer number (63665569).

Almost surely, 2^127331137 is an apocalyptic number.

It is an amenable number.

127331137 is a deficient number, since it is larger than the sum of its proper divisors (1).

127331137 is an equidigital number, since it uses as much as digits as its factorization.

127331137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2646, while the sum is 28.

The square root of 127331137 is about 11284.1099338849. The cubic root of 127331137 is about 503.0890587959.

Adding to 127331137 its reverse (731133721), we get a palindrome (858464858).

The spelling of 127331137 in words is "one hundred twenty-seven million, three hundred thirty-one thousand, one hundred thirty-seven".