31049159 has 2 divisors, whose sum is σ = 31049160. Its totient is φ = 31049158.

The previous prime is 31049119. The next prime is 31049189. The reversal of 31049159 is 95194013.

It is a strong prime.

It is an emirp because it is prime and its reverse (95194013) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31049159 - 2⁸ = 31048903 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31049119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15524579 + 15524580.

It is an arithmetic number, because the mean of its divisors is an integer number (15524580).

Almost surely, 2^31049159 is an apocalyptic number.

31049159 is a deficient number, since it is larger than the sum of its proper divisors (1).

31049159 is an equidigital number, since it uses as much as digits as its factorization.

31049159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 31049159 is about 5572.1772225944. The cubic root of 31049159 is about 314.3040282224.

The spelling of 31049159 in words is "thirty-one million, forty-nine thousand, one hundred fifty-nine".