180540700 has 36 divisors (see below), whose sum is σ = 392677992. Its totient is φ = 72049600.

The previous prime is 180540667. The next prime is 180540707. The reversal of 180540700 is 7045081.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180540707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47262 + ... + 50938.

It is an arithmetic number, because the mean of its divisors is an integer number (10907722).

Almost surely, 2^180540700 is an apocalyptic number.

180540700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

180540700 is an abundant number, since it is smaller than the sum of its proper divisors (212137292).

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

180540700 is a wasteful number, since it uses less digits than its factorization.

180540700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4182 (or 4175 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 180540700 is about 13436.5434543263. The cubic root of 180540700 is about 565.1864057193.

Adding to 180540700 its reverse (7045081), we get a palindrome (187585781).

The spelling of 180540700 in words is "one hundred eighty million, five hundred forty thousand, seven hundred".