83293145 has 8 divisors (see below), whose sum is σ = 107640456. Its totient is φ = 61508736.

The previous prime is 83293141. The next prime is 83293201. The reversal of 83293145 is 54139238.

It can be written as a sum of positive squares in 4 ways, for example, as 20313049 + 62980096 = 4507^2 + 7936^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83293145 - 2² = 83293141 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (83293141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 640652 + ... + 640781.

It is an arithmetic number, because the mean of its divisors is an integer number (13455057).

Almost surely, 2^83293145 is an apocalyptic number.

It is an amenable number.

83293145 is a deficient number, since it is larger than the sum of its proper divisors (24347311).

83293145 is a wasteful number, since it uses less digits than its factorization.

83293145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281451.

The product of its digits is 25920, while the sum is 35.

The square root of 83293145 is about 9126.5078206289. The cubic root of 83293145 is about 436.7200055919.

It can be divided in two parts, 83293 and 145, that added together give a palindrome (83438).

The spelling of 83293145 in words is "eighty-three million, two hundred ninety-three thousand, one hundred forty-five".