143345849 has 4 divisors (see below), whose sum is σ = 143917200. Its totient is φ = 142774500.

The previous prime is 143345827. The next prime is 143345863. The reversal of 143345849 is 948543341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143345849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143345879) 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, 285299 + ... + 285800.

It is an arithmetic number, because the mean of its divisors is an integer number (35979300).

Almost surely, 2^143345849 is an apocalyptic number.

It is an amenable number.

143345849 is a deficient number, since it is larger than the sum of its proper divisors (571351).

143345849 is an equidigital number, since it uses as much as digits as its factorization.

143345849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571350.

The product of its digits is 207360, while the sum is 41.

The square root of 143345849 is about 11972.7126834314. The cubic root of 143345849 is about 523.3533885057.

The spelling of 143345849 in words is "one hundred forty-three million, three hundred forty-five thousand, eight hundred forty-nine".