147579889 has 4 divisors (see below), whose sum is σ = 149238180. Its totient is φ = 145921600.

The previous prime is 147579877. The next prime is 147579911. The reversal of 147579889 is 988975741.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8151025 + 139428864 = 2855^2 + 11808^2 .

It is a cyclic number.

It is not a de Polignac number, because 147579889 - 2¹⁵ = 147547121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147579829) 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, 829012 + ... + 829189.

It is an arithmetic number, because the mean of its divisors is an integer number (37309545).

Almost surely, 2^147579889 is an apocalyptic number.

It is an amenable number.

147579889 is a deficient number, since it is larger than the sum of its proper divisors (1658291).

147579889 is an equidigital number, since it uses as much as digits as its factorization.

147579889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658290.

The product of its digits is 5080320, while the sum is 58.

The square root of 147579889 is about 12148.2463343480. The cubic root of 147579889 is about 528.4562757498.

The spelling of 147579889 in words is "one hundred forty-seven million, five hundred seventy-nine thousand, eight hundred eighty-nine".