545317245 has 64 divisors (see below), whose sum is σ = 1119847680. Its totient is φ = 248832000.

The previous prime is 545317217. The next prime is 545317259. The reversal of 545317245 is 542713545.

545317245 is a `hidden beast` number, since 54 + 531 + 72 + 4 + 5 = 666.

It is not a de Polignac number, because 545317245 - 2¹² = 545313149 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14445 + ... + 36045.

It is an arithmetic number, because the mean of its divisors is an integer number (17497620).

Almost surely, 2^545317245 is an apocalyptic number.

545317245 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

545317245 is an abundant number, since it is smaller than the sum of its proper divisors (574530435).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

545317245 is a wasteful number, since it uses less digits than its factorization.

545317245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21643 (or 21637 counting only the distinct ones).

The product of its digits is 84000, while the sum is 36.

The square root of 545317245 is about 23352.0287127264. The cubic root of 545317245 is about 816.9893789628.

It can be divided in two parts, 54531 and 7245, that added together give a triangular number (61776 = T₃₅₁).

The spelling of 545317245 in words is "five hundred forty-five million, three hundred seventeen thousand, two hundred forty-five".