83157943 has 16 divisors (see below), whose sum is σ = 92340000. Its totient is φ = 74260480.

The previous prime is 83157929. The next prime is 83157961. The reversal of 83157943 is 34975138.

It is a cyclic number.

It is not a de Polignac number, because 83157943 - 2⁵ = 83157911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83157896 and 83157905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83157913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184983 + ... + 185431.

It is an arithmetic number, because the mean of its divisors is an integer number (5771250).

Almost surely, 2^83157943 is an apocalyptic number.

83157943 is a deficient number, since it is larger than the sum of its proper divisors (9182057).

83157943 is a wasteful number, since it uses less digits than its factorization.

83157943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722.

The product of its digits is 90720, while the sum is 40.

The square root of 83157943 is about 9119.0977075586. The cubic root of 83157943 is about 436.4835819956.

It can be divided in two parts, 83157 and 943, that added together give a square (84100 = 290²).

The spelling of 83157943 in words is "eighty-three million, one hundred fifty-seven thousand, nine hundred forty-three".