140314431 has 4 divisors (see below), whose sum is σ = 187085912. Its totient is φ = 93542952.

The previous prime is 140314429. The next prime is 140314451. The reversal of 140314431 is 134413041.

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

It is not a de Polignac number, because 140314431 - 2¹ = 140314429 is a prime.

It is a super-2 number, since 2×140314431² = 39376279093707522, 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 = 140314398 and 140314407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140314451) 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, 23385736 + ... + 23385741.

It is an arithmetic number, because the mean of its divisors is an integer number (46771478).

Almost surely, 2^140314431 is an apocalyptic number.

140314431 is a deficient number, since it is larger than the sum of its proper divisors (46771481).

140314431 is an equidigital number, since it uses as much as digits as its factorization.

140314431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46771480.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 140314431 is about 11845.4392489261. The cubic root of 140314431 is about 519.6378531225.

Adding to 140314431 its reverse (134413041), we get a palindrome (274727472).

The spelling of 140314431 in words is "one hundred forty million, three hundred fourteen thousand, four hundred thirty-one".