140051311 has 4 divisors (see below), whose sum is σ = 140086152. Its totient is φ = 140016472.

The previous prime is 140051291. The next prime is 140051333. The reversal of 140051311 is 113150041.

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 140051311 - 2¹¹ = 140049263 is a prime.

It is a super-2 number, since 2×140051311² = 39228739425637442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140051341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10465 + ... + 19738.

It is an arithmetic number, because the mean of its divisors is an integer number (35021538).

Almost surely, 2^140051311 is an apocalyptic number.

140051311 is a deficient number, since it is larger than the sum of its proper divisors (34841).

140051311 is an equidigital number, since it uses as much as digits as its factorization.

140051311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34840.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 140051311 is about 11834.3276530608. The cubic root of 140051311 is about 519.3128386427.

The spelling of 140051311 in words is "one hundred forty million, fifty-one thousand, three hundred eleven".