140541623 has 4 divisors (see below), whose sum is σ = 140651280. Its totient is φ = 140431968.

The previous prime is 140541619. The next prime is 140541691. The reversal of 140541623 is 326145041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 326145041 = 3851 ⋅84691.

It is a cyclic number.

It is not a de Polignac number, because 140541623 - 2² = 140541619 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140541592 and 140541601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140541823) 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, 52883 + ... + 55476.

It is an arithmetic number, because the mean of its divisors is an integer number (35162820).

Almost surely, 2^140541623 is an apocalyptic number.

140541623 is a deficient number, since it is larger than the sum of its proper divisors (109657).

140541623 is a wasteful number, since it uses less digits than its factorization.

140541623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109656.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 140541623 is about 11855.0252213987. The cubic root of 140541623 is about 519.9181614304.

Adding to 140541623 its reverse (326145041), we get a palindrome (466686664).

The spelling of 140541623 in words is "one hundred forty million, five hundred forty-one thousand, six hundred twenty-three".