2154673140 has 48 divisors (see below), whose sum is σ = 6038817792. Its totient is φ = 574033536.

The previous prime is 2154673127. The next prime is 2154673163. The reversal of 2154673140 is 413764512.

2154673140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48702 + ... + 81738.

It is an arithmetic number, because the mean of its divisors is an integer number (125808704).

Almost surely, 2^2154673140 is an apocalyptic number.

2154673140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2154673140 is an abundant number, since it is smaller than the sum of its proper divisors (3884144652).

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

2154673140 is a wasteful number, since it uses less digits than its factorization.

2154673140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34136 (or 34134 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 2154673140 is about 46418.4568894745. The cubic root of 2154673140 is about 1291.5973122572.

The spelling of 2154673140 in words is "two billion, one hundred fifty-four million, six hundred seventy-three thousand, one hundred forty".