2140506064 has 10 divisors (see below), whose sum is σ = 4147230530. Its totient is φ = 1070253024.

The previous prime is 2140506041. The next prime is 2140506079. The reversal of 2140506064 is 4606050412.

It can be written as a sum of positive squares in only one way, i.e., 1856920464 + 283585600 = 43092^2 + 16840^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66890799 + ... + 66890830.

It is an arithmetic number, because the mean of its divisors is an integer number (414723053).

Almost surely, 2^2140506064 is an apocalyptic number.

It is an amenable number.

2140506064 is a deficient number, since it is larger than the sum of its proper divisors (2006724466).

2140506064 is a wasteful number, since it uses less digits than its factorization.

2140506064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133781637 (or 133781631 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 2140506064 is about 46265.6034652094. The cubic root of 2140506064 is about 1288.7603145668.

Adding to 2140506064 its reverse (4606050412), we get a palindrome (6746556476).

The spelling of 2140506064 in words is "two billion, one hundred forty million, five hundred six thousand, sixty-four".