89142091 has 6 divisors (see below), whose sum is σ = 94081092. Its totient is φ = 84450060.

The previous prime is 89142041. The next prime is 89142103. The reversal of 89142091 is 19024198.

It is not a de Polignac number, because 89142091 - 2¹¹ = 89140043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89142041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123105 + ... + 123826.

It is an arithmetic number, because the mean of its divisors is an integer number (15680182).

Almost surely, 2^89142091 is an apocalyptic number.

89142091 is a deficient number, since it is larger than the sum of its proper divisors (4939001).

89142091 is a wasteful number, since it uses less digits than its factorization.

89142091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246969 (or 246950 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 89142091 is about 9441.5089366054. The cubic root of 89142091 is about 446.7119862558.

The spelling of 89142091 in words is "eighty-nine million, one hundred forty-two thousand, ninety-one".