142764866 has 4 divisors (see below), whose sum is σ = 214147302. Its totient is φ = 71382432.

The previous prime is 142764847. The next prime is 142764877. The reversal of 142764866 is 668467241.

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

It can be written as a sum of positive squares in only one way, i.e., 138744841 + 4020025 = 11779^2 + 2005^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35691215 + ... + 35691218.

Almost surely, 2^142764866 is an apocalyptic number.

142764866 is a deficient number, since it is larger than the sum of its proper divisors (71382436).

142764866 is an equidigital number, since it uses as much as digits as its factorization.

142764866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71382435.

The product of its digits is 387072, while the sum is 44.

The square root of 142764866 is about 11948.4252518899. The cubic root of 142764866 is about 522.6453779211.

The spelling of 142764866 in words is "one hundred forty-two million, seven hundred sixty-four thousand, eight hundred sixty-six".