71051045 has 32 divisors (see below), whose sum is σ = 94832640. Its totient is φ = 50780160.

The previous prime is 71051033. The next prime is 71051047. The reversal of 71051045 is 54015017.

It is not a de Polignac number, because 71051045 - 2¹⁴ = 71034661 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 71051045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71051047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 371900 + ... + 372090.

It is an arithmetic number, because the mean of its divisors is an integer number (2963520).

Almost surely, 2^71051045 is an apocalyptic number.

It is an amenable number.

71051045 is a deficient number, since it is larger than the sum of its proper divisors (23781595).

71051045 is a wasteful number, since it uses less digits than its factorization.

71051045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 71051045 is about 8429.1781924456. The cubic root of 71051045 is about 414.1809849931.

The spelling of 71051045 in words is "seventy-one million, fifty-one thousand, forty-five".