126875751137 has 4 divisors (see below), whose sum is σ = 126887716500. Its totient is φ = 126863785776.

The previous prime is 126875751131. The next prime is 126875751157. The reversal of 126875751137 is 731157578621.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 103910167201 + 22965583936 = 322351^2 + 151544^2 .

It is a cyclic number.

It is not a de Polignac number, because 126875751137 - 2¹² = 126875747041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126875751131) 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 in 3 ways as a sum of consecutive naturals, for example, 5966762 + ... + 5987987.

It is an arithmetic number, because the mean of its divisors is an integer number (31721929125).

Almost surely, 2^126875751137 is an apocalyptic number.

It is an amenable number.

126875751137 is a deficient number, since it is larger than the sum of its proper divisors (11965363).

126875751137 is a wasteful number, since it uses less digits than its factorization.

126875751137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11965362.

The product of its digits is 2469600, while the sum is 53.

The spelling of 126875751137 in words is "one hundred twenty-six billion, eight hundred seventy-five million, seven hundred fifty-one thousand, one hundred thirty-seven".