2154105432 has 48 divisors (see below), whose sum is σ = 6022236480. Its totient is φ = 694872000.

The previous prime is 2154105419. The next prime is 2154105451. The reversal of 2154105432 is 2345014512.

2154105432 is a `hidden beast` number, since 215 + 4 + 10 + 5 + 432 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2154105396 and 2154105405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 480319 + ... + 484782.

It is an arithmetic number, because the mean of its divisors is an integer number (125463260).

Almost surely, 2^2154105432 is an apocalyptic number.

It is an amenable number.

2154105432 is an abundant number, since it is smaller than the sum of its proper divisors (3868131048).

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

2154105432 is a wasteful number, since it uses less digits than its factorization.

2154105432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965144 (or 965137 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 2154105432 is about 46412.3413759746. The cubic root of 2154105432 is about 1291.4838666614.

Adding to 2154105432 its reverse (2345014512), we get a palindrome (4499119944).

The spelling of 2154105432 in words is "two billion, one hundred fifty-four million, one hundred five thousand, four hundred thirty-two".