845104537 has 4 divisors (see below), whose sum is σ = 845902116. Its totient is φ = 844306960.

The previous prime is 845104483. The next prime is 845104549. The reversal of 845104537 is 735401548.

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 292102281 + 553002256 = 17091^2 + 23516^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-845104537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 845104496 and 845104505.

It is not an unprimeable number, because it can be changed into a prime (845104037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 397198 + ... + 399319.

It is an arithmetic number, because the mean of its divisors is an integer number (211475529).

Almost surely, 2^845104537 is an apocalyptic number.

It is an amenable number.

845104537 is a deficient number, since it is larger than the sum of its proper divisors (797579).

845104537 is a wasteful number, since it uses less digits than its factorization.

845104537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797578.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 845104537 is about 29070.6817429520. The cubic root of 845104537 is about 945.4461791966.

The spelling of 845104537 in words is "eight hundred forty-five million, one hundred four thousand, five hundred thirty-seven".