83145955 has 8 divisors (see below), whose sum is σ = 100708272. Its totient is φ = 65894688.

The previous prime is 83145947. The next prime is 83145977. The reversal of 83145955 is 55954138.

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 83145955 - 2³ = 83145947 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77172 + ... + 78241.

It is an arithmetic number, because the mean of its divisors is an integer number (12588534).

Almost surely, 2^83145955 is an apocalyptic number.

83145955 is a deficient number, since it is larger than the sum of its proper divisors (17562317).

83145955 is a wasteful number, since it uses less digits than its factorization.

83145955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155525.

The product of its digits is 108000, while the sum is 40.

The square root of 83145955 is about 9118.4403819952. The cubic root of 83145955 is about 436.4626065824.

It can be divided in two parts, 83145 and 955, that added together give a square (84100 = 290²).

The spelling of 83145955 in words is "eighty-three million, one hundred forty-five thousand, nine hundred fifty-five".