83120145 has 16 divisors (see below), whose sum is σ = 137283072. Its totient is φ = 42900480.

The previous prime is 83120129. The next prime is 83120159. The reversal of 83120145 is 54102138.

It is not a de Polignac number, because 83120145 - 2⁴ = 83120129 is a prime.

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, 88912 + ... + 89841.

It is an arithmetic number, because the mean of its divisors is an integer number (8580192).

Almost surely, 2^83120145 is an apocalyptic number.

It is an amenable number.

83120145 is a deficient number, since it is larger than the sum of its proper divisors (54162927).

83120145 is a wasteful number, since it uses less digits than its factorization.

83120145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178792.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 83120145 is about 9117.0250081921. The cubic root of 83120145 is about 436.4174399606.

The spelling of 83120145 in words is "eighty-three million, one hundred twenty thousand, one hundred forty-five".