71092457 has 2 divisors, whose sum is σ = 71092458. Its totient is φ = 71092456.

The previous prime is 71092403. The next prime is 71092477. The reversal of 71092457 is 75429017.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40500496 + 30591961 = 6364^2 + 5531^2 .

It is a cyclic number.

It is not a de Polignac number, because 71092457 - 2¹⁴ = 71076073 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (71092477) 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, 35546228 + 35546229.

It is an arithmetic number, because the mean of its divisors is an integer number (35546229).

Almost surely, 2^71092457 is an apocalyptic number.

It is an amenable number.

71092457 is a deficient number, since it is larger than the sum of its proper divisors (1).

71092457 is an equidigital number, since it uses as much as digits as its factorization.

71092457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 71092457 is about 8431.6343018421. The cubic root of 71092457 is about 414.2614376296.

The spelling of 71092457 in words is "seventy-one million, ninety-two thousand, four hundred fifty-seven".