91082534 has 4 divisors (see below), whose sum is σ = 136623804. Its totient is φ = 45541266.

The previous prime is 91082531. The next prime is 91082587. The reversal of 91082534 is 43528019.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×91082534² = 16592055999722312, which contains 22 as substring.

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 91082534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91082531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22770632 + ... + 22770635.

It is an arithmetic number, because the mean of its divisors is an integer number (34155951).

Almost surely, 2^91082534 is an apocalyptic number.

91082534 is a deficient number, since it is larger than the sum of its proper divisors (45541270).

91082534 is a wasteful number, since it uses less digits than its factorization.

91082534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45541269.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 91082534 is about 9543.7169907746. The cubic root of 91082534 is about 449.9300862578.

The spelling of 91082534 in words is "ninety-one million, eighty-two thousand, five hundred thirty-four".