2154053140 has 12 divisors (see below), whose sum is σ = 4523511636. Its totient is φ = 861621248.

The previous prime is 2154053131. The next prime is 2154053141. The reversal of 2154053140 is 413504512.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 989605764 + 1164447376 = 31458^2 + 34124^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154053141) 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 3 ways as a sum of consecutive naturals, for example, 53851309 + ... + 53851348.

It is an arithmetic number, because the mean of its divisors is an integer number (376959303).

Almost surely, 2^2154053140 is an apocalyptic number.

2154053140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2154053140 is an abundant number, since it is smaller than the sum of its proper divisors (2369458496).

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

2154053140 is a wasteful number, since it uses less digits than its factorization.

2154053140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107702666 (or 107702664 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2154053140 is about 46411.7780310128. The cubic root of 2154053140 is about 1291.4734161019.

Adding to 2154053140 its reverse (413504512), we get a palindrome (2567557652).

The spelling of 2154053140 in words is "two billion, one hundred fifty-four million, fifty-three thousand, one hundred forty".