71045783 has 2 divisors, whose sum is σ = 71045784. Its totient is φ = 71045782.

The previous prime is 71045749. The next prime is 71045789. The reversal of 71045783 is 38754017.

It is a strong prime.

It is an emirp because it is prime and its reverse (38754017) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71045783 - 2¹⁸ = 70783639 is a prime.

It is equal to p_4175873 and since 71045783 and 4175873 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71045789) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35522891 + 35522892.

It is an arithmetic number, because the mean of its divisors is an integer number (35522892).

Almost surely, 2^71045783 is an apocalyptic number.

71045783 is a deficient number, since it is larger than the sum of its proper divisors (1).

71045783 is an equidigital number, since it uses as much as digits as its factorization.

71045783 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 71045783 is about 8428.8660565939. The cubic root of 71045783 is about 414.1707600713.

The spelling of 71045783 in words is "seventy-one million, forty-five thousand, seven hundred eighty-three".