71050745 has 8 divisors (see below), whose sum is σ = 87340680. Its totient is φ = 55454080.

The previous prime is 71050741. The next prime is 71050813. The reversal of 71050745 is 54705017.

It can be written as a sum of positive squares in 4 ways, for example, as 2704 + 71048041 = 52^2 + 8429^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71050745 - 2² = 71050741 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71050741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173090 + ... + 173499.

It is an arithmetic number, because the mean of its divisors is an integer number (10917585).

Almost surely, 2^71050745 is an apocalyptic number.

It is an amenable number.

71050745 is a deficient number, since it is larger than the sum of its proper divisors (16289935).

71050745 is a wasteful number, since it uses less digits than its factorization.

71050745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346635.

The product of its (nonzero) digits is 4900, while the sum is 29.

The square root of 71050745 is about 8429.1603970977. The cubic root of 71050745 is about 414.1804020579.

The spelling of 71050745 in words is "seventy-one million, fifty thousand, seven hundred forty-five".