137243271 has 8 divisors (see below), whose sum is σ = 199626624. Its totient is φ = 83177720.

The previous prime is 137243233. The next prime is 137243273. The reversal of 137243271 is 172342731.

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 137243271 - 2⁹ = 137242759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137243273) 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, 2079411 + ... + 2079476.

It is an arithmetic number, because the mean of its divisors is an integer number (24953328).

Almost surely, 2^137243271 is an apocalyptic number.

137243271 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

137243271 is a deficient number, since it is larger than the sum of its proper divisors (62383353).

137243271 is a wasteful number, since it uses less digits than its factorization.

137243271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4158901.

The product of its digits is 7056, while the sum is 30.

The square root of 137243271 is about 11715.0873236182. The cubic root of 137243271 is about 515.8186257862.

The spelling of 137243271 in words is "one hundred thirty-seven million, two hundred forty-three thousand, two hundred seventy-one".