83120355 has 24 divisors (see below), whose sum is σ = 146054688. Its totient is φ = 43721856.

The previous prime is 83120311. The next prime is 83120371. The reversal of 83120355 is 55302138.

It is not a de Polignac number, because 83120355 - 2¹¹ = 83118307 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9367 + ... + 15936.

It is an arithmetic number, because the mean of its divisors is an integer number (6085612).

Almost surely, 2^83120355 is an apocalyptic number.

83120355 is a deficient number, since it is larger than the sum of its proper divisors (62934333).

83120355 is a wasteful number, since it uses less digits than its factorization.

83120355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25387 (or 25384 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 83120355 is about 9117.0365250996. The cubic root of 83120355 is about 436.4178074912.

The spelling of 83120355 in words is "eighty-three million, one hundred twenty thousand, three hundred fifty-five".