2140538454 has 32 divisors (see below), whose sum is σ = 4846508640. Its totient is φ = 700049376.

The previous prime is 2140538443. The next prime is 2140538497. The reversal of 2140538454 is 4548350412.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 371097 + ... + 376820.

It is an arithmetic number, because the mean of its divisors is an integer number (151453395).

Almost surely, 2^2140538454 is an apocalyptic number.

2140538454 is an abundant number, since it is smaller than the sum of its proper divisors (2705970186).

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

2140538454 is a wasteful number, since it uses less digits than its factorization.

2140538454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747981 (or 747975 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The square root of 2140538454 is about 46265.9535079523. The cubic root of 2140538454 is about 1288.7668150134.

Adding to 2140538454 its reverse (4548350412), we get a palindrome (6688888866).

The spelling of 2140538454 in words is "two billion, one hundred forty million, five hundred thirty-eight thousand, four hundred fifty-four".