71236090 has 16 divisors (see below), whose sum is σ = 128692872. Its totient is φ = 28390464.

The previous prime is 71236051. The next prime is 71236127. The reversal of 71236090 is 9063217.

It can be written as a sum of positive squares in 4 ways, for example, as 48986001 + 22250089 = 6999^2 + 4717^2 .

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, 10089 + ... + 15628.

Almost surely, 2^71236090 is an apocalyptic number.

71236090 is a deficient number, since it is larger than the sum of its proper divisors (57456782).

71236090 is a wasteful number, since it uses less digits than its factorization.

71236090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26001.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 71236090 is about 8440.1475105593. The cubic root of 71236090 is about 414.5402369507.

The spelling of 71236090 in words is "seventy-one million, two hundred thirty-six thousand, ninety".