143134666 has 4 divisors (see below), whose sum is σ = 214702002. Its totient is φ = 71567332.

The previous prime is 143134637. The next prime is 143134687. The reversal of 143134666 is 666431341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 666431341 = 109 ⋅6114049.

It can be written as a sum of positive squares in only one way, i.e., 129481641 + 13653025 = 11379^2 + 3695^2 .

It is a super-2 number, since 2×143134666² = 40975065221863112, which contains 22 as substring.

It is a nialpdrome in base 15.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 35783665 + ... + 35783668.

Almost surely, 2^143134666 is an apocalyptic number.

143134666 is a deficient number, since it is larger than the sum of its proper divisors (71567336).

143134666 is an equidigital number, since it uses as much as digits as its factorization.

143134666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71567335.

The product of its digits is 31104, while the sum is 34.

The square root of 143134666 is about 11963.8900864226. The cubic root of 143134666 is about 523.0962536120.

The spelling of 143134666 in words is "one hundred forty-three million, one hundred thirty-four thousand, six hundred sixty-six".