83131395 has 16 divisors (see below), whose sum is σ = 136255392. Its totient is φ = 43255040.

The previous prime is 83131393. The next prime is 83131397. The reversal of 83131395 is 59313138.

It is an interprime number because it is at equal distance from previous prime (83131393) and next prime (83131397).

It is not a de Polignac number, because 83131395 - 2¹ = 83131393 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (83131393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66972 + ... + 68201.

It is an arithmetic number, because the mean of its divisors is an integer number (8515962).

Almost surely, 2^83131395 is an apocalyptic number.

83131395 is a deficient number, since it is larger than the sum of its proper divisors (53123997).

83131395 is a wasteful number, since it uses less digits than its factorization.

83131395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135222.

The product of its digits is 9720, while the sum is 33.

The square root of 83131395 is about 9117.6419648942. The cubic root of 83131395 is about 436.4371282272.

The spelling of 83131395 in words is "eighty-three million, one hundred thirty-one thousand, three hundred ninety-five".