91482121 has 8 divisors (see below), whose sum is σ = 92693160. Its totient is φ = 90275328.

The previous prime is 91482107. The next prime is 91482133. The reversal of 91482121 is 12128419.

It can be written as a sum of positive squares in 4 ways, for example, as 2368521 + 89113600 = 1539^2 + 9440^2 .

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 91482121 - 2⁷ = 91481993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 91482121.

It is not an unprimeable number, because it can be changed into a prime (91482101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82845 + ... + 83941.

It is an arithmetic number, because the mean of its divisors is an integer number (11586645).

Almost surely, 2^91482121 is an apocalyptic number.

It is an amenable number.

91482121 is a deficient number, since it is larger than the sum of its proper divisors (1211039).

91482121 is a wasteful number, since it uses less digits than its factorization.

91482121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2123.

The product of its digits is 1152, while the sum is 28.

The square root of 91482121 is about 9564.6286388965. The cubic root of 91482121 is about 450.5870872284.

The spelling of 91482121 in words is "ninety-one million, four hundred eighty-two thousand, one hundred twenty-one".