147445889 has 8 divisors (see below), whose sum is σ = 157451520. Its totient is φ = 137768400.

The previous prime is 147445877. The next prime is 147445919. The reversal of 147445889 is 988544741.

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

It is a cyclic number.

It is not a de Polignac number, because 147445889 - 2⁴ = 147445873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147445819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81107 + ... + 82904.

It is an arithmetic number, because the mean of its divisors is an integer number (19681440).

Almost surely, 2^147445889 is an apocalyptic number.

It is an amenable number.

147445889 is a deficient number, since it is larger than the sum of its proper divisors (10005631).

147445889 is a wasteful number, since it uses less digits than its factorization.

147445889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164071.

The product of its digits is 1290240, while the sum is 50.

The square root of 147445889 is about 12142.7298825264. The cubic root of 147445889 is about 528.2962842482.

The spelling of 147445889 in words is "one hundred forty-seven million, four hundred forty-five thousand, eight hundred eighty-nine".