91146075 has 24 divisors (see below), whose sum is σ = 154375536. Its totient is φ = 47424000.

The previous prime is 91146073. The next prime is 91146119. The reversal of 91146075 is 57064119.

It is not a de Polignac number, because 91146075 - 2¹ = 91146073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91146071) 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 23 ways as a sum of consecutive naturals, for example, 11746 + ... + 17895.

It is an arithmetic number, because the mean of its divisors is an integer number (6432314).

Almost surely, 2^91146075 is an apocalyptic number.

91146075 is a deficient number, since it is larger than the sum of its proper divisors (63229461).

91146075 is a wasteful number, since it uses less digits than its factorization.

91146075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29695 (or 29690 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 91146075 is about 9547.0453544539. The cubic root of 91146075 is about 450.0346886839.

The spelling of 91146075 in words is "ninety-one million, one hundred forty-six thousand, seventy-five".