147443999 has 4 divisors (see below), whose sum is σ = 147468336. Its totient is φ = 147419664.

The previous prime is 147443983. The next prime is 147444049. The reversal of 147443999 is 999344741.

147443999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 999344741 = 211 ⋅4736231.

It is a cyclic number.

It is not a de Polignac number, because 147443999 - 2⁴ = 147443983 is a prime.

It is a super-2 number, since 2×147443999² = 43479465682224002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147443909) 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, 4907 + ... + 17859.

It is an arithmetic number, because the mean of its divisors is an integer number (36867084).

Almost surely, 2^147443999 is an apocalyptic number.

147443999 is a deficient number, since it is larger than the sum of its proper divisors (24337).

147443999 is a wasteful number, since it uses less digits than its factorization.

147443999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24336.

The product of its digits is 979776, while the sum is 50.

The square root of 147443999 is about 12142.6520579320. The cubic root of 147443999 is about 528.2940269586.

The spelling of 147443999 in words is "one hundred forty-seven million, four hundred forty-three thousand, nine hundred ninety-nine".