140142211 has 4 divisors (see below), whose sum is σ = 152882424. Its totient is φ = 127402000.

The previous prime is 140142173. The next prime is 140142251. The reversal of 140142211 is 112241041.

It is a happy number.

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

It is not a de Polignac number, because 140142211 - 2⁷ = 140142083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140142251) 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, 6370090 + ... + 6370111.

It is an arithmetic number, because the mean of its divisors is an integer number (38220606).

Almost surely, 2^140142211 is an apocalyptic number.

140142211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

140142211 is a deficient number, since it is larger than the sum of its proper divisors (12740213).

140142211 is a wasteful number, since it uses less digits than its factorization.

140142211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12740212.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 140142211 is about 11838.1675524551. The cubic root of 140142211 is about 519.4251673016.

Adding to 140142211 its reverse (112241041), we get a palindrome (252383252).

The spelling of 140142211 in words is "one hundred forty million, one hundred forty-two thousand, two hundred eleven".