2154907180 has 24 divisors (see below), whose sum is σ = 4531222080. Its totient is φ = 860835840.

The previous prime is 2154907109. The next prime is 2154907189. The reversal of 2154907180 is 817094512.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2154907189) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 54676 + ... + 85435.

It is an arithmetic number, because the mean of its divisors is an integer number (188800920).

Almost surely, 2^2154907180 is an apocalyptic number.

2154907180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2154907180 is an abundant number, since it is smaller than the sum of its proper divisors (2376314900).

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

2154907180 is a wasteful number, since it uses less digits than its factorization.

2154907180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140889 (or 140887 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 2154907180 is about 46420.9778009899. The cubic root of 2154907180 is about 1291.6440748783.

The spelling of 2154907180 in words is "two billion, one hundred fifty-four million, nine hundred seven thousand, one hundred eighty".