31119073 has 2 divisors, whose sum is σ = 31119074. Its totient is φ = 31119072.

The previous prime is 31119047. The next prime is 31119083. The reversal of 31119073 is 37091113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30393169 + 725904 = 5513^2 + 852^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31119073 is a prime.

It is equal to p_1922812 and since 31119073 and 1922812 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (31119013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15559536 + 15559537.

It is an arithmetic number, because the mean of its divisors is an integer number (15559537).

Almost surely, 2^31119073 is an apocalyptic number.

It is an amenable number.

31119073 is a deficient number, since it is larger than the sum of its proper divisors (1).

31119073 is an equidigital number, since it uses as much as digits as its factorization.

31119073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 567, while the sum is 25.

The square root of 31119073 is about 5578.4471853734. The cubic root of 31119073 is about 314.5397595579.

The spelling of 31119073 in words is "thirty-one million, one hundred nineteen thousand, seventy-three".