91071082 has 8 divisors (see below), whose sum is σ = 136649700. Its totient is φ = 45521184.

The previous prime is 91071037. The next prime is 91071089. The reversal of 91071082 is 28017019.

It can be written as a sum of positive squares in 2 ways, for example, as 91030681 + 40401 = 9541^2 + 201^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 91071082.

It is not an unprimeable number, because it can be changed into a prime (91071089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4644 + ... + 14272.

Almost surely, 2^91071082 is an apocalyptic number.

91071082 is a deficient number, since it is larger than the sum of its proper divisors (45578618).

91071082 is a wasteful number, since it uses less digits than its factorization.

91071082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14360.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 91071082 is about 9543.1169960344. The cubic root of 91071082 is about 449.9112285798.

The spelling of 91071082 in words is "ninety-one million, seventy-one thousand, eighty-two".