545854140 has 120 divisors (see below), whose sum is σ = 1844156160. Its totient is φ = 134358912.

The previous prime is 545854121. The next prime is 545854151. The reversal of 545854140 is 41458545.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 545854095 and 545854104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8101 + ... + 34019.

It is an arithmetic number, because the mean of its divisors is an integer number (15367968).

Almost surely, 2^545854140 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 545854140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (922078080).

545854140 is an abundant number, since it is smaller than the sum of its proper divisors (1298302020).

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

545854140 is a wasteful number, since it uses less digits than its factorization.

545854140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25953 (or 25942 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 36.

The square root of 545854140 is about 23363.5215667502. The cubic root of 545854140 is about 817.2574147658.

The spelling of 545854140 in words is "five hundred forty-five million, eight hundred fifty-four thousand, one hundred forty".