545471136 has 108 divisors (see below), whose sum is σ = 1804484682. Its totient is φ = 155844864.

The previous prime is 545471099. The next prime is 545471137. The reversal of 545471136 is 631174545.

545471136 is a `hidden beast` number, since 5 + 454 + 71 + 136 = 666.

It can be written as a sum of positive squares in only one way, i.e., 533610000 + 11861136 = 23100^2 + 3444^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 545471136.

It is not an unprimeable number, because it can be changed into a prime (545471137) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5215 + ... + 33438.

Almost surely, 2^545471136 is an apocalyptic number.

545471136 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545471136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (902242341).

545471136 is an abundant number, since it is smaller than the sum of its proper divisors (1259013546).

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

545471136 is a wasteful number, since it uses less digits than its factorization.

545471136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38683 (or 38665 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 545471136 is about 23355.3235045032. The cubic root of 545471136 is about 817.0662244374.

The spelling of 545471136 in words is "five hundred forty-five million, four hundred seventy-one thousand, one hundred thirty-six".