89148191 has 4 divisors (see below), whose sum is σ = 97252584. Its totient is φ = 81043800.

The previous prime is 89148167. The next prime is 89148203. The reversal of 89148191 is 19184198.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89148191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89148151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4052180 + ... + 4052201.

It is an arithmetic number, because the mean of its divisors is an integer number (24313146).

Almost surely, 2^89148191 is an apocalyptic number.

89148191 is a deficient number, since it is larger than the sum of its proper divisors (8104393).

89148191 is a wasteful number, since it uses less digits than its factorization.

89148191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8104392.

The product of its digits is 20736, while the sum is 41.

The square root of 89148191 is about 9441.8319726629. The cubic root of 89148191 is about 446.7221755350.

The spelling of 89148191 in words is "eighty-nine million, one hundred forty-eight thousand, one hundred ninety-one".