2140451541 has 8 divisors (see below), whose sum is σ = 3171039360. Its totient is φ = 1426967676.

The previous prime is 2140451527. The next prime is 2140451557. The reversal of 2140451541 is 1451540412.

2140451541 is a `hidden beast` number, since 2 + 140 + 4 + 515 + 4 + 1 = 666.

It is not a de Polignac number, because 2140451541 - 2⁶ = 2140451477 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 79275983 = 2140451541 / (2 + 1 + 4 + 0 + 4 + 5 + 1 + 5 + 4 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140451041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39637965 + ... + 39638018.

It is an arithmetic number, because the mean of its divisors is an integer number (396379920).

Almost surely, 2^2140451541 is an apocalyptic number.

It is an amenable number.

2140451541 is a deficient number, since it is larger than the sum of its proper divisors (1030587819).

2140451541 is an equidigital number, since it uses as much as digits as its factorization.

2140451541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79275992 (or 79275986 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 2140451541 is about 46265.0142224122. The cubic root of 2140451541 is about 1288.7493720337.

Adding to 2140451541 its reverse (1451540412), we get a palindrome (3591991953).

The spelling of 2140451541 in words is "two billion, one hundred forty million, four hundred fifty-one thousand, five hundred forty-one".