137872127 has 2 divisors, whose sum is σ = 137872128. Its totient is φ = 137872126.

The previous prime is 137872123. The next prime is 137872153. The reversal of 137872127 is 721278731.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 137872127 - 2² = 137872123 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137872121) 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, 68936063 + 68936064.

It is an arithmetic number, because the mean of its divisors is an integer number (68936064).

Almost surely, 2^137872127 is an apocalyptic number.

137872127 is a deficient number, since it is larger than the sum of its proper divisors (1).

137872127 is an equidigital number, since it uses as much as digits as its factorization.

137872127 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32928, while the sum is 38.

The square root of 137872127 is about 11741.8962267600. The cubic root of 137872127 is about 516.6052617046.

The spelling of 137872127 in words is "one hundred thirty-seven million, eight hundred seventy-two thousand, one hundred twenty-seven".