31674031 has 2 divisors, whose sum is σ = 31674032. Its totient is φ = 31674030.

The previous prime is 31674029. The next prime is 31674053. The reversal of 31674031 is 13047613.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31674031 - 2¹ = 31674029 is a prime.

It is a super-2 number, since 2×31674031² = 2006488479577922, which contains 22 as substring.

Together with 31674029, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 31673987 and 31674005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31674001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15837015 + 15837016.

It is an arithmetic number, because the mean of its divisors is an integer number (15837016).

Almost surely, 2^31674031 is an apocalyptic number.

31674031 is a deficient number, since it is larger than the sum of its proper divisors (1).

31674031 is an equidigital number, since it uses as much as digits as its factorization.

31674031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 31674031 is about 5627.9686388607. The cubic root of 31674031 is about 316.3985217904.

It can be divided in two parts, 316 and 74031, that added together give a palindrome (74347).

The spelling of 31674031 in words is "thirty-one million, six hundred seventy-four thousand, thirty-one".