140664464 has 20 divisors (see below), whose sum is σ = 274278204. Its totient is φ = 69883008.

The previous prime is 140664463. The next prime is 140664473. The reversal of 140664464 is 464466041.

It can be written as a sum of positive squares in 2 ways, for example, as 48888064 + 91776400 = 6992^2 + 9580^2 .

It is not an unprimeable number, because it can be changed into a prime (140664463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25487 + ... + 30510.

Almost surely, 2^140664464 is an apocalyptic number.

It is an amenable number.

140664464 is a deficient number, since it is larger than the sum of its proper divisors (133613740).

140664464 is a wasteful number, since it uses less digits than its factorization.

140664464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56162 (or 56156 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 35.

The square root of 140664464 is about 11860.2050572492. The cubic root of 140664464 is about 520.0695962076.

The spelling of 140664464 in words is "one hundred forty million, six hundred sixty-four thousand, four hundred sixty-four".