83975161 has 4 divisors (see below), whose sum is σ = 85559652. Its totient is φ = 82390672.

The previous prime is 83975141. The next prime is 83975201. The reversal of 83975161 is 16157938.

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 42771600 + 41203561 = 6540^2 + 6419^2 .

It is a cyclic number.

It is not a de Polignac number, because 83975161 - 2⁷ = 83975033 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83975141) 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, 792166 + ... + 792271.

It is an arithmetic number, because the mean of its divisors is an integer number (21389913).

Almost surely, 2^83975161 is an apocalyptic number.

It is an amenable number.

83975161 is a deficient number, since it is larger than the sum of its proper divisors (1584491).

83975161 is a wasteful number, since it uses less digits than its factorization.

83975161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1584490.

The product of its digits is 45360, while the sum is 40.

The square root of 83975161 is about 9163.7962111780. The cubic root of 83975161 is about 437.9087419252.

The spelling of 83975161 in words is "eighty-three million, nine hundred seventy-five thousand, one hundred sixty-one".