180545274 has 160 divisors (see below), whose sum is σ = 512916096. Its totient is φ = 46189440.

The previous prime is 180545269. The next prime is 180545291. The reversal of 180545274 is 472545081.

180545274 is a `hidden beast` number, since 1 + 80 + 54 + 527 + 4 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 545289 + ... + 545619.

Almost surely, 2^180545274 is an apocalyptic number.

180545274 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 180545274, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256458048).

180545274 is an abundant number, since it is smaller than the sum of its proper divisors (332370822).

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

180545274 is a wasteful number, since it uses less digits than its factorization.

180545274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402 (or 393 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The square root of 180545274 is about 13436.7136607133. The cubic root of 180545274 is about 565.1911786796.

The spelling of 180545274 in words is "one hundred eighty million, five hundred forty-five thousand, two hundred seventy-four".