140213111 has 4 divisors (see below), whose sum is σ = 142305912. Its totient is φ = 138120312.

The previous prime is 140213107. The next prime is 140213119. The reversal of 140213111 is 111312041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140213111 - 2² = 140213107 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 (140213119) 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, 1046300 + ... + 1046433.

It is an arithmetic number, because the mean of its divisors is an integer number (35576478).

Almost surely, 2^140213111 is an apocalyptic number.

140213111 is a deficient number, since it is larger than the sum of its proper divisors (2092801).

140213111 is an equidigital number, since it uses as much as digits as its factorization.

140213111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2092800.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 140213111 is about 11841.1617251011. The cubic root of 140213111 is about 519.5127474707.

Adding to 140213111 its reverse (111312041), we get a palindrome (251525152).

The spelling of 140213111 in words is "one hundred forty million, two hundred thirteen thousand, one hundred eleven".