140920693 has 4 divisors (see below), whose sum is σ = 143579628. Its totient is φ = 138261760.

The previous prime is 140920691. The next prime is 140920697. The reversal of 140920693 is 396029041.

140920693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 396029041 = 571 ⋅693571.

It can be written as a sum of positive squares in 2 ways, for example, as 77845329 + 63075364 = 8823^2 + 7942^2 .

It is a cyclic number.

It is not a de Polignac number, because 140920693 - 2¹ = 140920691 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140920691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1329388 + ... + 1329493.

It is an arithmetic number, because the mean of its divisors is an integer number (35894907).

Almost surely, 2^140920693 is an apocalyptic number.

It is an amenable number.

140920693 is a deficient number, since it is larger than the sum of its proper divisors (2658935).

140920693 is an equidigital number, since it uses as much as digits as its factorization.

140920693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2658934.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 140920693 is about 11871.0021902112. The cubic root of 140920693 is about 520.3851842831.

The spelling of 140920693 in words is "one hundred forty million, nine hundred twenty thousand, six hundred ninety-three".