140564023 has 8 divisors (see below), whose sum is σ = 142711056. Its totient is φ = 138432000.

The previous prime is 140564009. The next prime is 140564027. The reversal of 140564023 is 320465041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140564023 - 2⁵ = 140563991 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 (140564027) 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 7 ways as a sum of consecutive naturals, for example, 15888 + ... + 23098.

It is an arithmetic number, because the mean of its divisors is an integer number (17838882).

Almost surely, 2^140564023 is an apocalyptic number.

140564023 is a deficient number, since it is larger than the sum of its proper divisors (2147033).

140564023 is a wasteful number, since it uses less digits than its factorization.

140564023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7505.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 140564023 is about 11855.9699307986. The cubic root of 140564023 is about 519.9457820690.

The spelling of 140564023 in words is "one hundred forty million, five hundred sixty-four thousand, twenty-three".