89420145 has 8 divisors (see below), whose sum is σ = 143072256. Its totient is φ = 47690736.

The previous prime is 89420117. The next prime is 89420161. The reversal of 89420145 is 54102498.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 89420145 - 2¹⁴ = 89403761 is a prime.

It is a super-3 number, since 3×89420145³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2980657 + ... + 2980686.

It is an arithmetic number, because the mean of its divisors is an integer number (17884032).

Almost surely, 2^89420145 is an apocalyptic number.

It is an amenable number.

89420145 is a deficient number, since it is larger than the sum of its proper divisors (53652111).

89420145 is a wasteful number, since it uses less digits than its factorization.

89420145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5961351.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 89420145 is about 9456.2225544876. Note that the first 3 decimals coincide. The cubic root of 89420145 is about 447.1759688343.

The spelling of 89420145 in words is "eighty-nine million, four hundred twenty thousand, one hundred forty-five".