137271939809 has 8 divisors (see below), whose sum is σ = 139574275752. Its totient is φ = 134971280640.

The previous prime is 137271939719. The next prime is 137271939811. The reversal of 137271939809 is 908939172731.

It can be written as a sum of positive squares in 4 ways, for example, as 5343171409 + 131928768400 = 73097^2 + 363220^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 137271939809 - 2²⁸ = 137003504353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137271939839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253544 + ... + 582089.

It is an arithmetic number, because the mean of its divisors is an integer number (17446784469).

Almost surely, 2^137271939809 is an apocalyptic number.

It is an amenable number.

137271939809 is a deficient number, since it is larger than the sum of its proper divisors (2302335943).

137271939809 is an equidigital number, since it uses as much as digits as its factorization.

137271939809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838387.

The product of its (nonzero) digits is 5143824, while the sum is 59.

The spelling of 137271939809 in words is "one hundred thirty-seven billion, two hundred seventy-one million, nine hundred thirty-nine thousand, eight hundred nine".