140041823 has 4 divisors (see below), whose sum is σ = 140080920. Its totient is φ = 140002728.

The previous prime is 140041817. The next prime is 140041831. The reversal of 140041823 is 328140041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 328140041 = 47 ⋅6981703.

It is a cyclic number.

It is not a de Polignac number, because 140041823 - 2¹² = 140037727 is a prime.

It is a super-2 number, since 2×140041823² = 39223424378326658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140041843) 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, 13565 + ... + 21542.

It is an arithmetic number, because the mean of its divisors is an integer number (35020230).

Almost surely, 2^140041823 is an apocalyptic number.

140041823 is a deficient number, since it is larger than the sum of its proper divisors (39097).

140041823 is an equidigital number, since it uses as much as digits as its factorization.

140041823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39096.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 140041823 is about 11833.9267785465. The cubic root of 140041823 is about 519.3011111516.

Adding to 140041823 its reverse (328140041), we get a palindrome (468181864).

The spelling of 140041823 in words is "one hundred forty million, forty-one thousand, eight hundred twenty-three".