83975137 has 4 divisors (see below), whose sum is σ = 84806676. Its totient is φ = 83143600.

The previous prime is 83975119. The next prime is 83975141. The reversal of 83975137 is 73157938.

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

It can be written as a sum of positive squares in 2 ways, for example, as 46226401 + 37748736 = 6799^2 + 6144^2 .

It is a cyclic number.

It is not a de Polignac number, because 83975137 - 2¹¹ = 83973089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83975093 and 83975102.

It is not an unprimeable number, because it can be changed into a prime (83975107) 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, 415618 + ... + 415819.

It is an arithmetic number, because the mean of its divisors is an integer number (21201669).

Almost surely, 2^83975137 is an apocalyptic number.

It is an amenable number.

83975137 is a deficient number, since it is larger than the sum of its proper divisors (831539).

83975137 is a wasteful number, since it uses less digits than its factorization.

83975137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831538.

The product of its digits is 158760, while the sum is 43.

The square root of 83975137 is about 9163.7949016769. The cubic root of 83975137 is about 437.9087002073.

The spelling of 83975137 in words is "eighty-three million, nine hundred seventy-five thousand, one hundred thirty-seven".