143138662 has 4 divisors (see below), whose sum is σ = 214707996. Its totient is φ = 71569330.

The previous prime is 143138651. The next prime is 143138669. The reversal of 143138662 is 266831341.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143138669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35784664 + ... + 35784667.

It is an arithmetic number, because the mean of its divisors is an integer number (53676999).

Almost surely, 2^143138662 is an apocalyptic number.

143138662 is a deficient number, since it is larger than the sum of its proper divisors (71569334).

143138662 is an equidigital number, since it uses as much as digits as its factorization.

143138662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71569333.

The product of its digits is 20736, while the sum is 34.

The square root of 143138662 is about 11964.0570877943. The cubic root of 143138662 is about 523.1011214595.

The spelling of 143138662 in words is "one hundred forty-three million, one hundred thirty-eight thousand, six hundred sixty-two".