142812944836 has 9 divisors (see below), whose sum is σ = 249923976141. Its totient is φ = 71406094512.

The previous prime is 142812944831. The next prime is 142812944851. The reversal of 142812944836 is 638449218241.

The square root of 142812944836 is 377906.

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., 17394972100 + 125417972736 = 131890^2 + 354144^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142812944831) 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, 661336 + ... + 850288.

Almost surely, 2^142812944836 is an apocalyptic number.

142812944836 is the 377906-th square number.

It is an amenable number.

142812944836 is a deficient number, since it is larger than the sum of its proper divisors (107111031305).

142812944836 is an frugal number, since it uses more digits than its factorization.

142812944836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377910 (or 188955 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 52.

The spelling of 142812944836 in words is "one hundred forty-two billion, eight hundred twelve million, nine hundred forty-four thousand, eight hundred thirty-six".