20140031 has 2 divisors, whose sum is σ = 20140032. Its totient is φ = 20140030.

The previous prime is 20140027. The next prime is 20140067. The reversal of 20140031 is 13004102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20140031 - 2² = 20140027 is a prime.

It is a super-2 number, since 2×20140031² = 811241697361922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 20139994 and 20140021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20140091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10070015 + 10070016.

It is an arithmetic number, because the mean of its divisors is an integer number (10070016).

Almost surely, 2^20140031 is an apocalyptic number.

20140031 is a deficient number, since it is larger than the sum of its proper divisors (1).

20140031 is an equidigital number, since it uses as much as digits as its factorization.

20140031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 20140031 is about 4487.7645883001. The cubic root of 20140031 is about 272.0737932351.

Adding to 20140031 its reverse (13004102), we get a palindrome (33144133).

The spelling of 20140031 in words is "twenty million, one hundred forty thousand, thirty-one".