140542023 has 16 divisors (see below), whose sum is σ = 189778176. Its totient is φ = 92508480.

The previous prime is 140542013. The next prime is 140542037. The reversal of 140542023 is 320245041.

It is not a de Polignac number, because 140542023 - 2⁴ = 140542007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140542013) 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, 80803 + ... + 82523.

It is an arithmetic number, because the mean of its divisors is an integer number (11861136).

Almost surely, 2^140542023 is an apocalyptic number.

140542023 is a deficient number, since it is larger than the sum of its proper divisors (49236153).

140542023 is a wasteful number, since it uses less digits than its factorization.

140542023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2054.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 140542023 is about 11855.0420918696. The cubic root of 140542023 is about 519.9186546819.

Adding to 140542023 its reverse (320245041), we get a palindrome (460787064).

The spelling of 140542023 in words is "one hundred forty million, five hundred forty-two thousand, twenty-three".