40971097 has 2 divisors, whose sum is σ = 40971098. Its totient is φ = 40971096.

The previous prime is 40971079. The next prime is 40971101. The reversal of 40971097 is 79017904.

40971097 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (40971079) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39992976 + 978121 = 6324^2 + 989^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40971097 is a prime.

It is not a weakly prime, because it can be changed into another prime (40971017) 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, 20485548 + 20485549.

It is an arithmetic number, because the mean of its divisors is an integer number (20485549).

Almost surely, 2^40971097 is an apocalyptic number.

It is an amenable number.

40971097 is a deficient number, since it is larger than the sum of its proper divisors (1).

40971097 is an equidigital number, since it uses as much as digits as its factorization.

40971097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 40971097 is about 6400.8668944136. The cubic root of 40971097 is about 344.7406774924.

The spelling of 40971097 in words is "forty million, nine hundred seventy-one thousand, ninety-seven".