31374029 has 2 divisors, whose sum is σ = 31374030. Its totient is φ = 31374028.

The previous prime is 31374019. The next prime is 31374041. The reversal of 31374029 is 92047313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16728100 + 14645929 = 4090^2 + 3827^2 .

It is an emirp because it is prime and its reverse (92047313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31374029 - 2⁸ = 31373773 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31373992 and 31374010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31374019) 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, 15687014 + 15687015.

It is an arithmetic number, because the mean of its divisors is an integer number (15687015).

Almost surely, 2^31374029 is an apocalyptic number.

It is an amenable number.

31374029 is a deficient number, since it is larger than the sum of its proper divisors (1).

31374029 is an equidigital number, since it uses as much as digits as its factorization.

31374029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 31374029 is about 5601.2524492295. The cubic root of 31374029 is about 315.3964237147.

The spelling of 31374029 in words is "thirty-one million, three hundred seventy-four thousand, twenty-nine".