142822887427609 has 3 divisors (see below), whose sum is σ = 142822899378463. Its totient is φ = 142822875476756.

The previous prime is 142822887427567. The next prime is 142822887427621. The reversal of 142822887427609 is 906724788228241.

The square root of 142822887427609 is 11950853.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 142822696214025 + 191213584 = 11950845^2 + 13828^2 .

It is not a de Polignac number, because 142822887427609 - 2¹⁵ = 142822887394841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142822887427309) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 5975427 + ... + 17926279.

Almost surely, 2^{142822887427609} is an apocalyptic number.

142822887427609 is the 11950853-rd square number.

142822887427609 is the 5975427-th centered octagonal number.

It is an amenable number.

142822887427609 is a deficient number, since it is larger than the sum of its proper divisors (11950854).

142822887427609 is an frugal number, since it uses more digits than its factorization.

142822887427609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23901706 (or 11950853 counting only the distinct ones).

The product of its (nonzero) digits is 346816512, while the sum is 70.

The spelling of 142822887427609 in words is "one hundred forty-two trillion, eight hundred twenty-two billion, eight hundred eighty-seven million, four hundred twenty-seven thousand, six hundred nine".