83445245 has 16 divisors (see below), whose sum is σ = 113514240. Its totient is φ = 58377024.

The previous prime is 83445239. The next prime is 83445247. The reversal of 83445245 is 54254438.

It is a cyclic number.

It is not a de Polignac number, because 83445245 - 2¹⁸ = 83183101 is a prime.

It is a super-2 number, since 2×83445245² = 13926217826220050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83445247) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 32549 + ... + 35018.

It is an arithmetic number, because the mean of its divisors is an integer number (7094640).

Almost surely, 2^83445245 is an apocalyptic number.

It is an amenable number.

83445245 is a deficient number, since it is larger than the sum of its proper divisors (30068995).

83445245 is a wasteful number, since it uses less digits than its factorization.

83445245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67604.

The product of its digits is 76800, while the sum is 35.

The square root of 83445245 is about 9134.8368896221. The cubic root of 83445245 is about 436.9856725976.

The spelling of 83445245 in words is "eighty-three million, four hundred forty-five thousand, two hundred forty-five".