140467309393 has 4 divisors (see below), whose sum is σ = 140472944820. Its totient is φ = 140461673968.

The previous prime is 140467309331. The next prime is 140467309403. The reversal of 140467309393 is 393903764041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 393903764041 = 19219 ⋅20495539.

It can be written as a sum of positive squares in 2 ways, for example, as 77188397584 + 63278911809 = 277828^2 + 251553^2 .

It is a cyclic number.

It is not a de Polignac number, because 140467309393 - 2¹⁷ = 140467178321 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140467309313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2780158 + ... + 2830231.

It is an arithmetic number, because the mean of its divisors is an integer number (35118236205).

Almost surely, 2^140467309393 is an apocalyptic number.

It is an amenable number.

140467309393 is a deficient number, since it is larger than the sum of its proper divisors (5635427).

140467309393 is an equidigital number, since it uses as much as digits as its factorization.

140467309393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5635426.

The product of its (nonzero) digits is 1469664, while the sum is 49.

The spelling of 140467309393 in words is "one hundred forty billion, four hundred sixty-seven million, three hundred nine thousand, three hundred ninety-three".