2147137731 has 12 divisors (see below), whose sum is σ = 3264654120. Its totient is φ = 1356086880.

The previous prime is 2147137711. The next prime is 2147137739. The reversal of 2147137731 is 1377317412.

It is a happy number.

2147137731 is a `hidden beast` number, since 214 + 71 + 377 + 3 + 1 = 666.

It is not a de Polignac number, because 2147137731 - 2⁶ = 2147137667 is a prime.

It is a super-2 number, since 2×2147137731² = 9220400871767656722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2147137739) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6278010 + ... + 6278351.

It is an arithmetic number, because the mean of its divisors is an integer number (272054510).

Almost surely, 2^2147137731 is an apocalyptic number.

2147137731 is a deficient number, since it is larger than the sum of its proper divisors (1117516389).

2147137731 is a wasteful number, since it uses less digits than its factorization.

2147137731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12556386 (or 12556383 counting only the distinct ones).

The product of its digits is 24696, while the sum is 36.

The square root of 2147137731 is about 46337.2175578120. The cubic root of 2147137731 is about 1290.0898783601.

The spelling of 2147137731 in words is "two billion, one hundred forty-seven million, one hundred thirty-seven thousand, seven hundred thirty-one".