140553823 has 2 divisors, whose sum is σ = 140553824. Its totient is φ = 140553822.

The previous prime is 140553769. The next prime is 140553839. The reversal of 140553823 is 328355041.

140553823 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140553823 - 2⁹ = 140553311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140553883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70276911 + 70276912.

It is an arithmetic number, because the mean of its divisors is an integer number (70276912).

Almost surely, 2^140553823 is an apocalyptic number.

140553823 is a deficient number, since it is larger than the sum of its proper divisors (1).

140553823 is an equidigital number, since it uses as much as digits as its factorization.

140553823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 140553823 is about 11855.5397599603. The cubic root of 140553823 is about 519.9332051779.

It can be divided in two parts, 140553 and 823, that added together give a square (141376 = 376²).

The spelling of 140553823 in words is "one hundred forty million, five hundred fifty-three thousand, eight hundred twenty-three".