83018257 has 4 divisors (see below), whose sum is σ = 94878016. Its totient is φ = 71158500.

The previous prime is 83018233. The next prime is 83018281. The reversal of 83018257 is 75281038.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (83018233) and next prime (83018281).

It is not a de Polignac number, because 83018257 - 2¹⁹ = 82493969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83018207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5929869 + ... + 5929882.

It is an arithmetic number, because the mean of its divisors is an integer number (23719504).

Almost surely, 2^83018257 is an apocalyptic number.

It is an amenable number.

83018257 is a deficient number, since it is larger than the sum of its proper divisors (11859759).

83018257 is a wasteful number, since it uses less digits than its factorization.

83018257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11859758.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 83018257 is about 9111.4355070977. The cubic root of 83018257 is about 436.2390480635.

The spelling of 83018257 in words is "eighty-three million, eighteen thousand, two hundred fifty-seven".