91122313 has 8 divisors (see below), whose sum is σ = 92449280. Its totient is φ = 89799840.

The previous prime is 91122307. The next prime is 91122319. The reversal of 91122313 is 31322119.

It is an interprime number because it is at equal distance from previous prime (91122307) and next prime (91122319).

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 91122313 - 2⁵ = 91122281 is a prime.

It is a super-4 number, since 4×91122313⁴ (a number of 33 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91122319) 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, 73408 + ... + 74638.

It is an arithmetic number, because the mean of its divisors is an integer number (11556160).

Almost surely, 2^91122313 is an apocalyptic number.

It is an amenable number.

91122313 is a deficient number, since it is larger than the sum of its proper divisors (1326967).

91122313 is a wasteful number, since it uses less digits than its factorization.

91122313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2247.

The product of its digits is 324, while the sum is 22.

The square root of 91122313 is about 9545.8008045423. The cubic root of 91122313 is about 449.9955769113.

The spelling of 91122313 in words is "ninety-one million, one hundred twenty-two thousand, three hundred thirteen".