137612500171 has 4 divisors (see below), whose sum is σ = 139666418152. Its totient is φ = 135558582192.

The previous prime is 137612500147. The next prime is 137612500187. The reversal of 137612500171 is 171005216731.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 171005216731 = 461 ⋅370944071.

It is a cyclic number.

It is not a de Polignac number, because 137612500171 - 2⁵ = 137612500139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137612500141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1026958890 + ... + 1026959023.

It is an arithmetic number, because the mean of its divisors is an integer number (34916604538).

Almost surely, 2^137612500171 is an apocalyptic number.

137612500171 is a deficient number, since it is larger than the sum of its proper divisors (2053917981).

137612500171 is an equidigital number, since it uses as much as digits as its factorization.

137612500171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2053917980.

The product of its (nonzero) digits is 8820, while the sum is 34.

The spelling of 137612500171 in words is "one hundred thirty-seven billion, six hundred twelve million, five hundred thousand, one hundred seventy-one".