132143197 has 4 divisors (see below), whose sum is σ = 133505596. Its totient is φ = 130780800.

The previous prime is 132143189. The next prime is 132143201. The reversal of 132143197 is 791341231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 791341231 = 181 ⋅4372051.

It can be written as a sum of positive squares in 2 ways, for example, as 50041476 + 82101721 = 7074^2 + 9061^2 .

It is a cyclic number.

It is not a de Polignac number, because 132143197 - 2³ = 132143189 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 (132143107) 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, 681054 + ... + 681247.

It is an arithmetic number, because the mean of its divisors is an integer number (33376399).

Almost surely, 2^132143197 is an apocalyptic number.

It is an amenable number.

132143197 is a deficient number, since it is larger than the sum of its proper divisors (1362399).

132143197 is an equidigital number, since it uses as much as digits as its factorization.

132143197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362398.

The product of its digits is 4536, while the sum is 31.

The square root of 132143197 is about 11495.3554533994. The cubic root of 132143197 is about 509.3483886232.

The spelling of 132143197 in words is "one hundred thirty-two million, one hundred forty-three thousand, one hundred ninety-seven".