83159257 has 8 divisors (see below), whose sum is σ = 92685600. Its totient is φ = 74147904.

The previous prime is 83159249. The next prime is 83159281. The reversal of 83159257 is 75295138.

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 83159257 - 2³ = 83159249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83159207) 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, 128407 + ... + 129052.

It is an arithmetic number, because the mean of its divisors is an integer number (11585700).

Almost surely, 2^83159257 is an apocalyptic number.

It is an amenable number.

83159257 is a deficient number, since it is larger than the sum of its proper divisors (9526343).

83159257 is a wasteful number, since it uses less digits than its factorization.

83159257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257495.

The product of its digits is 75600, while the sum is 40.

The square root of 83159257 is about 9119.1697538756. The cubic root of 83159257 is about 436.4858809798.

The spelling of 83159257 in words is "eighty-three million, one hundred fifty-nine thousand, two hundred fifty-seven".