83242745 has 8 divisors (see below), whose sum is σ = 100321416. Its totient is φ = 66307456.

The previous prime is 83242739. The next prime is 83242763. The reversal of 83242745 is 54724238.

It can be written as a sum of positive squares in 4 ways, for example, as 10106041 + 73136704 = 3179^2 + 8552^2 .

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 83242745 - 2⁴ = 83242729 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34562 + ... + 36891.

It is an arithmetic number, because the mean of its divisors is an integer number (12540177).

Almost surely, 2^83242745 is an apocalyptic number.

It is an amenable number.

83242745 is a deficient number, since it is larger than the sum of its proper divisors (17078671).

83242745 is a wasteful number, since it uses less digits than its factorization.

83242745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71691.

The product of its digits is 53760, while the sum is 35.

The square root of 83242745 is about 9123.7462152342. The cubic root of 83242745 is about 436.6319025863.

The spelling of 83242745 in words is "eighty-three million, two hundred forty-two thousand, seven hundred forty-five".