143135197 has 4 divisors (see below), whose sum is σ = 143212860. Its totient is φ = 143057536.

The previous prime is 143135177. The next prime is 143135221. The reversal of 143135197 is 791531341.

It is a happy number.

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 24019801 + 119115396 = 4901^2 + 10914^2 .

It is a cyclic number.

It is not a de Polignac number, because 143135197 - 2¹⁵ = 143102429 is a prime.

It is a Duffinian number.

It is a zygodrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143135117) by changing a digit.

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, 35998 + ... + 39775.

It is an arithmetic number, because the mean of its divisors is an integer number (35803215).

Almost surely, 2^143135197 is an apocalyptic number.

It is an amenable number.

143135197 is a deficient number, since it is larger than the sum of its proper divisors (77663).

143135197 is an equidigital number, since it uses as much as digits as its factorization.

143135197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77662.

The product of its digits is 11340, while the sum is 34.

The square root of 143135197 is about 11963.9122781806. The cubic root of 143135197 is about 523.0969004708.

The spelling of 143135197 in words is "one hundred forty-three million, one hundred thirty-five thousand, one hundred ninety-seven".