83251513 has 8 divisors (see below), whose sum is σ = 86986368. Its totient is φ = 79526304.

The previous prime is 83251481. The next prime is 83251577. The reversal of 83251513 is 31515238.

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 83251513 - 2⁵ = 83251481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83251313) 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, 19620 + ... + 23482.

It is an arithmetic number, because the mean of its divisors is an integer number (10873296).

Almost surely, 2^83251513 is an apocalyptic number.

It is an amenable number.

83251513 is a deficient number, since it is larger than the sum of its proper divisors (3734855).

83251513 is a wasteful number, since it uses less digits than its factorization.

83251513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4823.

The product of its digits is 3600, while the sum is 28.

The square root of 83251513 is about 9124.2267069599. The cubic root of 83251513 is about 436.6472322670.

The spelling of 83251513 in words is "eighty-three million, two hundred fifty-one thousand, five hundred thirteen".