91418454 has 24 divisors (see below), whose sum is σ = 198258840. Its totient is φ = 30444288.

The previous prime is 91418447. The next prime is 91418461. The reversal of 91418454 is 45481419.

It is an interprime number because it is at equal distance from previous prime (91418447) and next prime (91418461).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 27574 + ... + 30710.

It is an arithmetic number, because the mean of its divisors is an integer number (8260785).

Almost surely, 2^91418454 is an apocalyptic number.

91418454 is an abundant number, since it is smaller than the sum of its proper divisors (106840386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91418454 is a wasteful number, since it uses less digits than its factorization.

91418454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4764 (or 4761 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 91418454 is about 9561.2998070346. The cubic root of 91418454 is about 450.4825342462.

The spelling of 91418454 in words is "ninety-one million, four hundred eighteen thousand, four hundred fifty-four".