89150191 has 4 divisors (see below), whose sum is σ = 96007912. Its totient is φ = 82292472.

The previous prime is 89150167. The next prime is 89150197. The reversal of 89150191 is 19105198.

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-89150191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89150197) 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, 3428841 + ... + 3428866.

It is an arithmetic number, because the mean of its divisors is an integer number (24001978).

Almost surely, 2^89150191 is an apocalyptic number.

89150191 is a deficient number, since it is larger than the sum of its proper divisors (6857721).

89150191 is a wasteful number, since it uses less digits than its factorization.

89150191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6857720.

The product of its (nonzero) digits is 3240, while the sum is 34.

The square root of 89150191 is about 9441.9378837186. The cubic root of 89150191 is about 446.7255161811.

The spelling of 89150191 in words is "eighty-nine million, one hundred fifty thousand, one hundred ninety-one".