8137604245 has 4 divisors (see below), whose sum is σ = 9765125100. Its totient is φ = 6510083392.

The previous prime is 8137604207. The next prime is 8137604291. The reversal of 8137604245 is 5424067318.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5086257124 + 3051347121 = 71318^2 + 55239^2 .

It is a cyclic number.

It is not a de Polignac number, because 8137604245 - 2¹³ = 8137596053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8137604198 and 8137604207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 813760420 + ... + 813760429.

It is an arithmetic number, because the mean of its divisors is an integer number (2441281275).

Almost surely, 2^8137604245 is an apocalyptic number.

It is an amenable number.

8137604245 is a deficient number, since it is larger than the sum of its proper divisors (1627520855).

8137604245 is a wasteful number, since it uses less digits than its factorization.

8137604245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627520854.

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 8137604245 is about 90208.6705644197. The cubic root of 8137604245 is about 2011.4018952850.

The spelling of 8137604245 in words is "eight billion, one hundred thirty-seven million, six hundred four thousand, two hundred forty-five".