143170229 has 4 divisors (see below), whose sum is σ = 143217900. Its totient is φ = 143122560.

The previous prime is 143170219. The next prime is 143170231. The reversal of 143170229 is 922071341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 922071341 = 251 ⋅3673591.

It can be written as a sum of positive squares in 2 ways, for example, as 117180625 + 25989604 = 10825^2 + 5098^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143170229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143170219) 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, 19004 + ... + 25445.

It is an arithmetic number, because the mean of its divisors is an integer number (35804475).

Almost surely, 2^143170229 is an apocalyptic number.

It is an amenable number.

143170229 is a deficient number, since it is larger than the sum of its proper divisors (47671).

143170229 is an equidigital number, since it uses as much as digits as its factorization.

143170229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47670.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 143170229 is about 11965.3762581876. The cubic root of 143170229 is about 523.1395725650.

The spelling of 143170229 in words is "one hundred forty-three million, one hundred seventy thousand, two hundred twenty-nine".