545151420 has 288 divisors, whose sum is σ = 1948826880. Its totient is φ = 121927680.

The previous prime is 545151413. The next prime is 545151421. The reversal of 545151420 is 24151545.

545151420 is a `hidden beast` number, since 5 + 4 + 515 + 142 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545151421) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1617492 + ... + 1617828.

It is an arithmetic number, because the mean of its divisors is an integer number (6766760).

Almost surely, 2^545151420 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 545151420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (974413440).

545151420 is an abundant number, since it is smaller than the sum of its proper divisors (1403675460).

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

545151420 is a wasteful number, since it uses less digits than its factorization.

545151420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425 (or 420 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 545151420 is about 23348.4778947151. The cubic root of 545151420 is about 816.9065580607.

The spelling of 545151420 in words is "five hundred forty-five million, one hundred fifty-one thousand, four hundred twenty".