143133197 has 4 divisors (see below), whose sum is σ = 146461920. Its totient is φ = 139804476.

The previous prime is 143133187. The next prime is 143133203. The reversal of 143133197 is 791331341.

It is a happy number.

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 not a de Polignac number, because 143133197 - 2⁴ = 143133181 is a prime.

It is a super-2 number, since 2×143133197² = 40974224166881618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143133157) 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, 1664297 + ... + 1664382.

It is an arithmetic number, because the mean of its divisors is an integer number (36615480).

Almost surely, 2^143133197 is an apocalyptic number.

It is an amenable number.

143133197 is a deficient number, since it is larger than the sum of its proper divisors (3328723).

143133197 is an equidigital number, since it uses as much as digits as its factorization.

143133197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3328722.

The product of its digits is 6804, while the sum is 32.

The square root of 143133197 is about 11963.8286931902. The cubic root of 143133197 is about 523.0944640827.

The spelling of 143133197 in words is "one hundred forty-three million, one hundred thirty-three thousand, one hundred ninety-seven".