142006124569 has 3 divisors (see below), whose sum is σ = 142006501407. Its totient is φ = 142005747732.

The previous prime is 142006124483. The next prime is 142006124581. The reversal of 142006124569 is 965421600241.

The square root of 142006124569 is 376837.

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., 103506975625 + 38499148944 = 321725^2 + 196212^2 .

It is not a de Polignac number, because 142006124569 - 2²⁹ = 141469253657 is a prime.

It is a super-2 number, since 2×142006124569² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142006824569) by changing a digit.

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 in 2 ways as a sum of consecutive naturals, for example, 188419 + ... + 565255.

It is an arithmetic number, because the mean of its divisors is an integer number (47335500469).

Almost surely, 2^142006124569 is an apocalyptic number.

142006124569 is the 376837-th square number.

142006124569 is the 188419-th centered octagonal number.

It is an amenable number.

142006124569 is a deficient number, since it is larger than the sum of its proper divisors (376838).

142006124569 is an frugal number, since it uses more digits than its factorization.

142006124569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753674 (or 376837 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 142006124569 in words is "one hundred forty-two billion, six million, one hundred twenty-four thousand, five hundred sixty-nine".