137706871 has 4 divisors (see below), whose sum is σ = 137751544. Its totient is φ = 137662200.

The previous prime is 137706869. The next prime is 137706893. The reversal of 137706871 is 178607731.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 137706871 - 2¹ = 137706869 is a prime.

It is a super-2 number, since 2×137706871² = 37926364641221282, which 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 (137706071) 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, 17340 + ... + 24001.

It is an arithmetic number, because the mean of its divisors is an integer number (34437886).

Almost surely, 2^137706871 is an apocalyptic number.

137706871 is a deficient number, since it is larger than the sum of its proper divisors (44673).

137706871 is an equidigital number, since it uses as much as digits as its factorization.

137706871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44672.

The product of its (nonzero) digits is 49392, while the sum is 40.

The square root of 137706871 is about 11734.8570932926. The cubic root of 137706871 is about 516.3987750776.

The spelling of 137706871 in words is "one hundred thirty-seven million, seven hundred six thousand, eight hundred seventy-one".