91464161 has 4 divisors (see below), whose sum is σ = 91483392. Its totient is φ = 91444932.

The previous prime is 91464151. The next prime is 91464211. The reversal of 91464161 is 16146419.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91464161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91464151) 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, 3320 + ... + 13926.

It is an arithmetic number, because the mean of its divisors is an integer number (22870848).

Almost surely, 2^91464161 is an apocalyptic number.

It is an amenable number.

91464161 is a deficient number, since it is larger than the sum of its proper divisors (19231).

91464161 is a wasteful number, since it uses less digits than its factorization.

91464161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19230.

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

The square root of 91464161 is about 9563.6897168405. The cubic root of 91464161 is about 450.5575985019.

The spelling of 91464161 in words is "ninety-one million, four hundred sixty-four thousand, one hundred sixty-one".