140210423 has 4 divisors (see below), whose sum is σ = 140454000. Its totient is φ = 139966848.

The previous prime is 140210419. The next prime is 140210437. The reversal of 140210423 is 324012041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324012041 = 29 ⋅11172829.

It is a cyclic number.

It is not a de Polignac number, because 140210423 - 2² = 140210419 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 (140210453) 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, 120923 + ... + 122076.

It is an arithmetic number, because the mean of its divisors is an integer number (35113500).

Almost surely, 2^140210423 is an apocalyptic number.

140210423 is a deficient number, since it is larger than the sum of its proper divisors (243577).

140210423 is an equidigital number, since it uses as much as digits as its factorization.

140210423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243576.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 140210423 is about 11841.0482221803. The cubic root of 140210423 is about 519.5094276214.

Adding to 140210423 its reverse (324012041), we get a palindrome (464222464).

The spelling of 140210423 in words is "one hundred forty million, two hundred ten thousand, four hundred twenty-three".