91156934 has 8 divisors (see below), whose sum is σ = 149165928. Its totient is φ = 41434960.

The previous prime is 91156913. The next prime is 91156939. The reversal of 91156934 is 43965119.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91156939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2071727 + ... + 2071770.

It is an arithmetic number, because the mean of its divisors is an integer number (18645741).

Almost surely, 2^91156934 is an apocalyptic number.

91156934 is a deficient number, since it is larger than the sum of its proper divisors (58008994).

91156934 is a wasteful number, since it uses less digits than its factorization.

91156934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4143510.

The product of its digits is 29160, while the sum is 38.

The square root of 91156934 is about 9547.6140474990. The cubic root of 91156934 is about 450.0525601159.

The spelling of 91156934 in words is "ninety-one million, one hundred fifty-six thousand, nine hundred thirty-four".