127146138813 has 6 divisors (see below), whose sum is σ = 183655533854. Its totient is φ = 84764092536.

The previous prime is 127146138787. The next prime is 127146138827. The reversal of 127146138813 is 318831641721.

127146138813 is a `hidden beast` number, since 1 + 2 + 7 + 14 + 613 + 8 + 8 + 13 = 666.

It can be written as a sum of positive squares in only one way, i.e., 112012710489 + 15133428324 = 334683^2 + 123018^2 .

It is not a de Polignac number, because 127146138813 - 2⁵ = 127146138781 is a prime.

It is a super-2 number, since 2×127146138813² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127146138883) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7063674370 + ... + 7063674387.

Almost surely, 2^127146138813 is an apocalyptic number.

It is an amenable number.

127146138813 is a deficient number, since it is larger than the sum of its proper divisors (56509395041).

127146138813 is a wasteful number, since it uses less digits than its factorization.

127146138813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14127348763 (or 14127348760 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The spelling of 127146138813 in words is "one hundred twenty-seven billion, one hundred forty-six million, one hundred thirty-eight thousand, eight hundred thirteen".