140723823 has 16 divisors (see below), whose sum is σ = 197988480. Its totient is φ = 88661664.

The previous prime is 140723813. The next prime is 140723831. The reversal of 140723823 is 328327041.

140723823 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 140723823 - 2¹⁴ = 140707439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140723813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22465 + ... + 28037.

It is an arithmetic number, because the mean of its divisors is an integer number (12374280).

Almost surely, 2^140723823 is an apocalyptic number.

140723823 is a deficient number, since it is larger than the sum of its proper divisors (57264657).

140723823 is a wasteful number, since it uses less digits than its factorization.

140723823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6038.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 140723823 is about 11862.7072373889. The cubic root of 140723823 is about 520.1427406463.

The spelling of 140723823 in words is "one hundred forty million, seven hundred twenty-three thousand, eight hundred twenty-three".