71356090 has 16 divisors (see below), whose sum is σ = 138321288. Its totient is φ = 26346816.

The previous prime is 71356081. The next prime is 71356133. The reversal of 71356090 is 9065317.

It can be written as a sum of positive squares in 4 ways, for example, as 46744569 + 24611521 = 6837^2 + 4961^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274317 + ... + 274576.

Almost surely, 2^71356090 is an apocalyptic number.

71356090 is a deficient number, since it is larger than the sum of its proper divisors (66965198).

71356090 is a wasteful number, since it uses less digits than its factorization.

71356090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548913.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 71356090 is about 8447.2533997744. The cubic root of 71356090 is about 414.7728761564.

It can be divided in two parts, 7135 and 6090, that added together give a square (13225 = 115²).

The spelling of 71356090 in words is "seventy-one million, three hundred fifty-six thousand, ninety".