140711331 has 4 divisors (see below), whose sum is σ = 187615112. Its totient is φ = 93807552.

The previous prime is 140711327. The next prime is 140711339. The reversal of 140711331 is 133117041.

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

It is not a de Polignac number, because 140711331 - 2² = 140711327 is a prime.

It is a super-2 number, since 2×140711331² = 39599357343583122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140711298 and 140711307.

It is not an unprimeable number, because it can be changed into a prime (140711339) 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, 23451886 + ... + 23451891.

It is an arithmetic number, because the mean of its divisors is an integer number (46903778).

Almost surely, 2^140711331 is an apocalyptic number.

140711331 is a deficient number, since it is larger than the sum of its proper divisors (46903781).

140711331 is an equidigital number, since it uses as much as digits as its factorization.

140711331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46903780.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 140711331 is about 11862.1807017091. The cubic root of 140711331 is about 520.1273492334.

Adding to 140711331 its reverse (133117041), we get a palindrome (273828372).

The spelling of 140711331 in words is "one hundred forty million, seven hundred eleven thousand, three hundred thirty-one".