91608134 has 4 divisors (see below), whose sum is σ = 137412204. Its totient is φ = 45804066.

The previous prime is 91608133. The next prime is 91608137. The reversal of 91608134 is 43180619.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 91608134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91608133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22902032 + ... + 22902035.

It is an arithmetic number, because the mean of its divisors is an integer number (34353051).

Almost surely, 2^91608134 is an apocalyptic number.

91608134 is a deficient number, since it is larger than the sum of its proper divisors (45804070).

91608134 is a wasteful number, since it uses less digits than its factorization.

91608134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45804069.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 91608134 is about 9571.2138206186. The cubic root of 91608134 is about 450.7938809322.

The spelling of 91608134 in words is "ninety-one million, six hundred eight thousand, one hundred thirty-four".