91454194 has 16 divisors (see below), whose sum is σ = 147893760. Its totient is φ = 42163920.

The previous prime is 91454191. The next prime is 91454243. The reversal of 91454194 is 49145419.

It is not an unprimeable number, because it can be changed into a prime (91454191) 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, 39727 + ... + 41965.

It is an arithmetic number, because the mean of its divisors is an integer number (9243360).

Almost surely, 2^91454194 is an apocalyptic number.

91454194 is a deficient number, since it is larger than the sum of its proper divisors (56439566).

91454194 is a wasteful number, since it uses less digits than its factorization.

91454194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3825.

The product of its digits is 25920, while the sum is 37.

The square root of 91454194 is about 9563.1686171478. The cubic root of 91454194 is about 450.5412319066.

The spelling of 91454194 in words is "ninety-one million, four hundred fifty-four thousand, one hundred ninety-four".