143269145 has 4 divisors (see below), whose sum is σ = 171922980. Its totient is φ = 114615312.

The previous prime is 143269121. The next prime is 143269153. The reversal of 143269145 is 541962341.

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 110733529 + 32535616 = 10523^2 + 5704^2 .

It is a cyclic number.

It is not a de Polignac number, because 143269145 - 2⁸ = 143268889 is a prime.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 14326910 + ... + 14326919.

It is an arithmetic number, because the mean of its divisors is an integer number (42980745).

Almost surely, 2^143269145 is an apocalyptic number.

It is an amenable number.

143269145 is a deficient number, since it is larger than the sum of its proper divisors (28653835).

143269145 is an equidigital number, since it uses as much as digits as its factorization.

143269145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28653834.

The product of its digits is 25920, while the sum is 35.

The square root of 143269145 is about 11969.5089707139. The cubic root of 143269145 is about 523.2600234940.

The spelling of 143269145 in words is "one hundred forty-three million, two hundred sixty-nine thousand, one hundred forty-five".