83123081 has 32 divisors (see below), whose sum is σ = 98703360. Its totient is φ = 69417216.

The previous prime is 83123071. The next prime is 83123111. The reversal of 83123081 is 18032138.

It is a cyclic number.

It is not a de Polignac number, because 83123081 - 2¹⁰ = 83122057 is a prime.

It is a super-2 number, since 2×83123081² = 13818893189865122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 83123081.

It is not an unprimeable number, because it can be changed into a prime (83123011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 497660 + ... + 497826.

It is an arithmetic number, because the mean of its divisors is an integer number (3084480).

Almost surely, 2^83123081 is an apocalyptic number.

It is an amenable number.

83123081 is a deficient number, since it is larger than the sum of its proper divisors (15580279).

83123081 is a wasteful number, since it uses less digits than its factorization.

83123081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 83123081 is about 9117.1860242072. The cubic root of 83123081 is about 436.4225783320.

The spelling of 83123081 in words is "eighty-three million, one hundred twenty-three thousand, eighty-one".