142493415289 has 9 divisors (see below), whose sum is σ = 144500063439. Its totient is φ = 140514271920.

The previous prime is 142493415209. The next prime is 142493415299. The reversal of 142493415289 is 982514394241.

The square root of 142493415289 is 377483.

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

It can be written as a sum of positive squares in only one way, i.e., 80886204025 + 61607211264 = 284405^2 + 248208^2 .

It is not a de Polignac number, because 142493415289 - 2¹⁷ = 142493284217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142493415209) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 27553674 + ... + 27558844.

Almost surely, 2^142493415289 is an apocalyptic number.

142493415289 is the 377483-rd square number.

142493415289 is the 188742-nd centered octagonal number.

It is an amenable number.

142493415289 is a deficient number, since it is larger than the sum of its proper divisors (2006648150).

142493415289 is an frugal number, since it uses more digits than its factorization.

142493415289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10488 (or 5244 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 52.

The spelling of 142493415289 in words is "one hundred forty-two billion, four hundred ninety-three million, four hundred fifteen thousand, two hundred eighty-nine".