127672537 has 2 divisors, whose sum is σ = 127672538. Its totient is φ = 127672536.

The previous prime is 127672487. The next prime is 127672543. The reversal of 127672537 is 735276721.

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., 79495056 + 48177481 = 8916^2 + 6941^2 .

It is an emirp because it is prime and its reverse (735276721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 127672537 - 2¹¹ = 127670489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 127672537.

It is not a weakly prime, because it can be changed into another prime (127672037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63836268 + 63836269.

It is an arithmetic number, because the mean of its divisors is an integer number (63836269).

Almost surely, 2^127672537 is an apocalyptic number.

It is an amenable number.

127672537 is a deficient number, since it is larger than the sum of its proper divisors (1).

127672537 is an equidigital number, since it uses as much as digits as its factorization.

127672537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 123480, while the sum is 40.

The square root of 127672537 is about 11299.2272744644. The cubic root of 127672537 is about 503.5382846864.

The spelling of 127672537 in words is "one hundred twenty-seven million, six hundred seventy-two thousand, five hundred thirty-seven".