545274540 has 72 divisors (see below), whose sum is σ = 1741062960. Its totient is φ = 137752704.

The previous prime is 545274523. The next prime is 545274557. The reversal of 545274540 is 45472545.

It is a happy number.

545274540 is a `hidden beast` number, since 5 + 45 + 2 + 74 + 540 = 666.

It is an interprime number because it is at equal distance from previous prime (545274523) and next prime (545274557).

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 = 545274495 and 545274504.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76299 + ... + 83138.

It is an arithmetic number, because the mean of its divisors is an integer number (24181430).

Almost surely, 2^545274540 is an apocalyptic number.

It is an amenable number.

545274540 is an abundant number, since it is smaller than the sum of its proper divisors (1195788420).

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

545274540 is a wasteful number, since it uses less digits than its factorization.

545274540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159471 (or 159466 counting only the distinct ones).

The product of its (nonzero) digits is 112000, while the sum is 36.

The square root of 545274540 is about 23351.1143203060. The cubic root of 545274540 is about 816.9680516574.

The spelling of 545274540 in words is "five hundred forty-five million, two hundred seventy-four thousand, five hundred forty".