137121271 has 8 divisors (see below), whose sum is σ = 164958080. Its totient is φ = 111346488.

The previous prime is 137121263. The next prime is 137121287. The reversal of 137121271 is 172121731.

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 137121271 - 2³ = 137121263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137121241) 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, 515361 + ... + 515626.

It is an arithmetic number, because the mean of its divisors is an integer number (20619760).

Almost surely, 2^137121271 is an apocalyptic number.

137121271 is a deficient number, since it is larger than the sum of its proper divisors (27836809).

137121271 is a wasteful number, since it uses less digits than its factorization.

137121271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031013.

The product of its digits is 588, while the sum is 25.

The square root of 137121271 is about 11709.8792051840. The cubic root of 137121271 is about 515.6657378331.

The spelling of 137121271 in words is "one hundred thirty-seven million, one hundred twenty-one thousand, two hundred seventy-one".