83015290 has 16 divisors (see below), whose sum is σ = 149538312. Its totient is φ = 33181504.

The previous prime is 83015249. The next prime is 83015291. The reversal of 83015290 is 9251038.

It can be written as a sum of positive squares in 4 ways, for example, as 40335201 + 42680089 = 6351^2 + 6533^2 .

It is not an unprimeable number, because it can be changed into a prime (83015291) 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, 17892 + ... + 22048.

Almost surely, 2^83015290 is an apocalyptic number.

83015290 is a deficient number, since it is larger than the sum of its proper divisors (66523022).

83015290 is a wasteful number, since it uses less digits than its factorization.

83015290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6161.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 83015290 is about 9111.2726882692. The cubic root of 83015290 is about 436.2338510674.

The spelling of 83015290 in words is "eighty-three million, fifteen thousand, two hundred ninety".