91206043 has 8 divisors (see below), whose sum is σ = 92415600. Its totient is φ = 90000768.

The previous prime is 91206019. The next prime is 91206047. The reversal of 91206043 is 34060219.

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

It is a cyclic number.

It is not a de Polignac number, because 91206043 - 2⁹ = 91205531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91205999 and 91206017.

It is not an unprimeable number, because it can be changed into a prime (91206047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75855 + ... + 77047.

It is an arithmetic number, because the mean of its divisors is an integer number (11551950).

Almost surely, 2^91206043 is an apocalyptic number.

91206043 is a deficient number, since it is larger than the sum of its proper divisors (1209557).

91206043 is a wasteful number, since it uses less digits than its factorization.

91206043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2141.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 91206043 is about 9550.1854955807. The cubic root of 91206043 is about 450.1333645866.

The spelling of 91206043 in words is "ninety-one million, two hundred six thousand, forty-three".