91910134 has 4 divisors (see below), whose sum is σ = 137865204. Its totient is φ = 45955066.

The previous prime is 91910107. The next prime is 91910167. The reversal of 91910134 is 43101919.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22977532 + ... + 22977535.

It is an arithmetic number, because the mean of its divisors is an integer number (34466301).

Almost surely, 2^91910134 is an apocalyptic number.

91910134 is a deficient number, since it is larger than the sum of its proper divisors (45955070).

91910134 is a wasteful number, since it uses less digits than its factorization.

91910134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45955069.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 91910134 is about 9586.9773130012. The cubic root of 91910134 is about 451.2887075295.

The spelling of 91910134 in words is "ninety-one million, nine hundred ten thousand, one hundred thirty-four".