143227157 has 4 divisors (see below), whose sum is σ = 143637900. Its totient is φ = 142816416.

The previous prime is 143227153. The next prime is 143227163. The reversal of 143227157 is 751722341.

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 123787876 + 19439281 = 11126^2 + 4409^2 .

It is a cyclic number.

It is not a de Polignac number, because 143227157 - 2² = 143227153 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 (143227153) 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, 204848 + ... + 205545.

It is an arithmetic number, because the mean of its divisors is an integer number (35909475).

Almost surely, 2^143227157 is an apocalyptic number.

It is an amenable number.

143227157 is a deficient number, since it is larger than the sum of its proper divisors (410743).

143227157 is an equidigital number, since it uses as much as digits as its factorization.

143227157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410742.

The product of its digits is 11760, while the sum is 32.

The square root of 143227157 is about 11967.7548855247. The cubic root of 143227157 is about 523.2089010918.

Adding to 143227157 its reverse (751722341), we get a palindrome (894949498).

The spelling of 143227157 in words is "one hundred forty-three million, two hundred twenty-seven thousand, one hundred fifty-seven".