2154401136 has 60 divisors (see below), whose sum is σ = 6169565688. Its totient is φ = 701430912.

The previous prime is 2154401113. The next prime is 2154401261. The reversal of 2154401136 is 6311044512.

It is a happy number.

2154401136 is a `hidden beast` number, since 2 + 1 + 544 + 0 + 113 + 6 = 666.

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, 167775 + ... + 180158.

Almost surely, 2^2154401136 is an apocalyptic number.

It is an amenable number.

2154401136 is an abundant number, since it is smaller than the sum of its proper divisors (4015164552).

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

2154401136 is a wasteful number, since it uses less digits than its factorization.

2154401136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347990 (or 347981 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 2154401136 is about 46415.5268848690. The cubic root of 2154401136 is about 1291.5429599422.

Adding to 2154401136 its reverse (6311044512), we get a palindrome (8465445648).

The spelling of 2154401136 in words is "two billion, one hundred fifty-four million, four hundred one thousand, one hundred thirty-six".