2147138073 has 24 divisors (see below), whose sum is σ = 3290393600. Its totient is φ = 1345395744.

The previous prime is 2147138069. The next prime is 2147138087. The reversal of 2147138073 is 3708317412.

It is not a de Polignac number, because 2147138073 - 2² = 2147138069 is a prime.

It is a super-2 number, since 2×2147138073² = 9220403809052306658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2147138003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27718 + ... + 71151.

Almost surely, 2^2147138073 is an apocalyptic number.

It is an amenable number.

2147138073 is a deficient number, since it is larger than the sum of its proper divisors (1143255527).

2147138073 is a wasteful number, since it uses less digits than its factorization.

2147138073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99021 (or 99018 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 2147138073 is about 46337.2212481500. The cubic root of 2147138073 is about 1290.0899468560.

The spelling of 2147138073 in words is "two billion, one hundred forty-seven million, one hundred thirty-eight thousand, seventy-three".