83123445 has 16 divisors (see below), whose sum is σ = 133180992. Its totient is φ = 44271360.

The previous prime is 83123407. The next prime is 83123477. The reversal of 83123445 is 54432138.

It is not a de Polignac number, because 83123445 - 2⁸ = 83123189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8749 + ... + 15581.

It is an arithmetic number, because the mean of its divisors is an integer number (8323812).

Almost surely, 2^83123445 is an apocalyptic number.

It is an amenable number.

83123445 is a deficient number, since it is larger than the sum of its proper divisors (50057547).

83123445 is a wasteful number, since it uses less digits than its factorization.

83123445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7652.

The product of its digits is 11520, while the sum is 30.

The square root of 83123445 is about 9117.2059864851. The cubic root of 83123445 is about 436.4232153696.

The spelling of 83123445 in words is "eighty-three million, one hundred twenty-three thousand, four hundred forty-five".