91352109 has 8 divisors (see below), whose sum is σ = 122188320. Its totient is φ = 60708656.

The previous prime is 91352099. The next prime is 91352147. The reversal of 91352109 is 90125319.

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

It is a cyclic number.

It is not a de Polignac number, because 91352109 - 2¹² = 91348013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91352179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47079 + ... + 48980.

It is an arithmetic number, because the mean of its divisors is an integer number (15273540).

Almost surely, 2^91352109 is an apocalyptic number.

It is an amenable number.

91352109 is a deficient number, since it is larger than the sum of its proper divisors (30836211).

91352109 is a wasteful number, since it uses less digits than its factorization.

91352109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96379.

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 91352109 is about 9557.8297222748. The cubic root of 91352109 is about 450.3735318317.

The spelling of 91352109 in words is "ninety-one million, three hundred fifty-two thousand, one hundred nine".