80145233 has 12 divisors (see below), whose sum is σ = 93389940. Its totient is φ = 68578272.

The previous prime is 80145229. The next prime is 80145253. The reversal of 80145233 is 33254108.

It can be written as a sum of positive squares in 2 ways, for example, as 31047184 + 49098049 = 5572^2 + 7007^2 .

It is not a de Polignac number, because 80145233 - 2² = 80145229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80145223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39635 + ... + 41607.

It is an arithmetic number, because the mean of its divisors is an integer number (7782495).

Almost surely, 2^80145233 is an apocalyptic number.

It is an amenable number.

80145233 is a deficient number, since it is larger than the sum of its proper divisors (13244707).

80145233 is a wasteful number, since it uses less digits than its factorization.

80145233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2816 (or 2809 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 80145233 is about 8952.3870001246. The cubic root of 80145233 is about 431.1475262227.

The spelling of 80145233 in words is "eighty million, one hundred forty-five thousand, two hundred thirty-three".