31069097 has 2 divisors, whose sum is σ = 31069098. Its totient is φ = 31069096.

The previous prime is 31069057. The next prime is 31069111. The reversal of 31069097 is 79096013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29041321 + 2027776 = 5389^2 + 1424^2 .

It is an emirp because it is prime and its reverse (79096013) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31069097 - 2¹⁰ = 31068073 is a prime.

It is not a weakly prime, because it can be changed into another prime (31069057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15534548 + 15534549.

It is an arithmetic number, because the mean of its divisors is an integer number (15534549).

Almost surely, 2^31069097 is an apocalyptic number.

It is an amenable number.

31069097 is a deficient number, since it is larger than the sum of its proper divisors (1).

31069097 is an equidigital number, since it uses as much as digits as its factorization.

31069097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 31069097 is about 5573.9660027668. The cubic root of 31069097 is about 314.3712898708.

It can be divided in two parts, 3106 and 9097, that multiplied together give a palindrome (28255282).

The spelling of 31069097 in words is "thirty-one million, sixty-nine thousand, ninety-seven".