545277312 has 128 divisors (see below), whose sum is σ = 1704175200. Its totient is φ = 171048960.

The previous prime is 545277311. The next prime is 545277347. The reversal of 545277312 is 213772545.

545277312 is a `hidden beast` number, since 54 + 527 + 73 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545277311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54112 + ... + 63392.

Almost surely, 2^545277312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545277312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (852087600).

545277312 is an abundant number, since it is smaller than the sum of its proper divisors (1158897888).

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

545277312 is a wasteful number, since it uses less digits than its factorization.

545277312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9321 (or 9303 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 545277312 is about 23351.1736749997. The cubic root of 545277312 is about 816.9694360558.

The spelling of 545277312 in words is "five hundred forty-five million, two hundred seventy-seven thousand, three hundred twelve".