2140646534 has 16 divisors (see below), whose sum is σ = 3569516160. Its totient is φ = 956119680.

The previous prime is 2140646527. The next prime is 2140646539. The reversal of 2140646534 is 4356460412.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2140646494 and 2140646503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140646539) 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, 1327139 + ... + 1328750.

It is an arithmetic number, because the mean of its divisors is an integer number (223094760).

Almost surely, 2^2140646534 is an apocalyptic number.

2140646534 is a deficient number, since it is larger than the sum of its proper divisors (1428869626).

2140646534 is a wasteful number, since it uses less digits than its factorization.

2140646534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2655935.

The product of its (nonzero) digits is 69120, while the sum is 35.

The square root of 2140646534 is about 46267.1215227401. The cubic root of 2140646534 is about 1288.7885054394.

The spelling of 2140646534 in words is "two billion, one hundred forty million, six hundred forty-six thousand, five hundred thirty-four".