140781043264 has 21 divisors (see below), whose sum is σ = 279368339281. Its totient is φ = 70389020800.

The previous prime is 140781043261. The next prime is 140781043307. The reversal of 140781043264 is 462340187041.

The square root of 140781043264 is 375208.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 132781529664 + 7999513600 = 364392^2 + 89440^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140781043261) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2978214 + ... + 3025114.

Almost surely, 2^140781043264 is an apocalyptic number.

140781043264 is the 375208-th square number.

It is an amenable number.

140781043264 is a deficient number, since it is larger than the sum of its proper divisors (138587296017).

140781043264 is an frugal number, since it uses more digits than its factorization.

140781043264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93814 (or 46903 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The spelling of 140781043264 in words is "one hundred forty billion, seven hundred eighty-one million, forty-three thousand, two hundred sixty-four".