83521514 has 4 divisors (see below), whose sum is σ = 125282274. Its totient is φ = 41760756.

The previous prime is 83521513. The next prime is 83521517. The reversal of 83521514 is 41512538.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 82210489 + 1311025 = 9067^2 + 1145^2 .

It is not an unprimeable number, because it can be changed into a prime (83521513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20880377 + ... + 20880380.

Almost surely, 2^83521514 is an apocalyptic number.

83521514 is a deficient number, since it is larger than the sum of its proper divisors (41760760).

83521514 is a wasteful number, since it uses less digits than its factorization.

83521514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41760759.

The product of its digits is 4800, while the sum is 29.

The square root of 83521514 is about 9139.0105591360. The cubic root of 83521514 is about 437.1187671050.

The spelling of 83521514 in words is "eighty-three million, five hundred twenty-one thousand, five hundred fourteen".