83051613 has 12 divisors (see below), whose sum is σ = 127020348. Its totient is φ = 52110720.

The previous prime is 83051599. The next prime is 83051623. The reversal of 83051613 is 31615038.

It can be written as a sum of positive squares in 2 ways, for example, as 61121124 + 21930489 = 7818^2 + 4683^2 .

It is not a de Polignac number, because 83051613 - 2¹⁶ = 82986077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83051623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 271258 + ... + 271563.

It is an arithmetic number, because the mean of its divisors is an integer number (10585029).

Almost surely, 2^83051613 is an apocalyptic number.

It is an amenable number.

83051613 is a deficient number, since it is larger than the sum of its proper divisors (43968735).

83051613 is a wasteful number, since it uses less digits than its factorization.

83051613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542844 (or 542841 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 83051613 is about 9113.2657702933. The cubic root of 83051613 is about 436.2974659015.

The spelling of 83051613 in words is "eighty-three million, fifty-one thousand, six hundred thirteen".