2140533544 has 8 divisors (see below), whose sum is σ = 4013500410. Its totient is φ = 1070266768.

The previous prime is 2140533491. The next prime is 2140533547. The reversal of 2140533544 is 4453350412.

It can be written as a sum of positive squares in only one way, i.e., 1177176100 + 963357444 = 34310^2 + 31038^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (2140533547) 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 as a sum of consecutive naturals, namely, 133783339 + ... + 133783354.

Almost surely, 2^2140533544 is an apocalyptic number.

It is an amenable number.

2140533544 is a deficient number, since it is larger than the sum of its proper divisors (1872966866).

2140533544 is a wasteful number, since it uses less digits than its factorization.

2140533544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267566699 (or 267566695 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 2140533544 is about 46265.9004451443. The cubic root of 2140533544 is about 1288.7658296149.

Adding to 2140533544 its reverse (4453350412), we get a palindrome (6593883956).

The spelling of 2140533544 in words is "two billion, one hundred forty million, five hundred thirty-three thousand, five hundred forty-four".