140434031 has 2 divisors, whose sum is σ = 140434032. Its totient is φ = 140434030.

The previous prime is 140434013. The next prime is 140434033. The reversal of 140434031 is 130434041.

It is a happy number.

Together with previous prime (140434013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (130434041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140434031 - 2⁶ = 140433967 is a prime.

It is a super-2 number, since 2×140434031² = 39443434125817922, which contains 22 as substring.

Together with 140434033, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 140433994 and 140434012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140434033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70217015 + 70217016.

It is an arithmetic number, because the mean of its divisors is an integer number (70217016).

Almost surely, 2^140434031 is an apocalyptic number.

140434031 is a deficient number, since it is larger than the sum of its proper divisors (1).

140434031 is an equidigital number, since it uses as much as digits as its factorization.

140434031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 140434031 is about 11850.4865300966. The cubic root of 140434031 is about 519.7854526654.

Adding to 140434031 its reverse (130434041), we get a palindrome (270868072).

The spelling of 140434031 in words is "one hundred forty million, four hundred thirty-four thousand, thirty-one".