143669227 has 16 divisors (see below), whose sum is σ = 164959200. Its totient is φ = 123950592.

The previous prime is 143669179. The next prime is 143669231. The reversal of 143669227 is 722966341.

It is a happy number.

143669227 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 143669227 - 2¹¹ = 143667179 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 143669227.

It is not an unprimeable number, because it can be changed into a prime (143669027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30748 + ... + 35110.

It is an arithmetic number, because the mean of its divisors is an integer number (10309950).

Almost surely, 2^143669227 is an apocalyptic number.

143669227 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

143669227 is a deficient number, since it is larger than the sum of its proper divisors (21289973).

143669227 is a wasteful number, since it uses less digits than its factorization.

143669227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4542.

The product of its digits is 108864, while the sum is 40.

The square root of 143669227 is about 11986.2098680108. The cubic root of 143669227 is about 523.7466422282.

The spelling of 143669227 in words is "one hundred forty-three million, six hundred sixty-nine thousand, two hundred twenty-seven".