71412091 has 2 divisors, whose sum is σ = 71412092. Its totient is φ = 71412090.

The previous prime is 71412083. The next prime is 71412101. The reversal of 71412091 is 19021417.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71412091 - 2³ = 71412083 is a prime.

It is not a weakly prime, because it can be changed into another prime (71412071) 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, 35706045 + 35706046.

It is an arithmetic number, because the mean of its divisors is an integer number (35706046).

Almost surely, 2^71412091 is an apocalyptic number.

71412091 is a deficient number, since it is larger than the sum of its proper divisors (1).

71412091 is an equidigital number, since it uses as much as digits as its factorization.

71412091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 71412091 is about 8450.5674957366. The cubic root of 71412091 is about 414.8813538025.

The spelling of 71412091 in words is "seventy-one million, four hundred twelve thousand, ninety-one".