91354194 has 12 divisors (see below), whose sum is σ = 197934126. Its totient is φ = 30451392.

The previous prime is 91354187. The next prime is 91354201. The reversal of 91354194 is 49145319.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (91354187) and next prime (91354201).

It can be written as a sum of positive squares in only one way, i.e., 91298025 + 56169 = 9555^2 + 237^2 .

It is a super-2 number, since 2×91354194² = 16691177522779272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2537599 + ... + 2537634.

Almost surely, 2^91354194 is an apocalyptic number.

91354194 is an abundant number, since it is smaller than the sum of its proper divisors (106579932).

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

91354194 is a wasteful number, since it uses less digits than its factorization.

91354194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5075241 (or 5075238 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 91354194 is about 9557.9387945310. The cubic root of 91354194 is about 450.3769582137.

The spelling of 91354194 in words is "ninety-one million, three hundred fifty-four thousand, one hundred ninety-four".