142772884 has 12 divisors (see below), whose sum is σ = 254567124. Its totient is φ = 70039424.

The previous prime is 142772881. The next prime is 142772923. The reversal of 142772884 is 488277241.

It can be written as a sum of positive squares in 2 ways, for example, as 70896400 + 71876484 = 8420^2 + 8478^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 142772884.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142772881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336517 + ... + 336940.

It is an arithmetic number, because the mean of its divisors is an integer number (21213927).

Almost surely, 2^142772884 is an apocalyptic number.

It is an amenable number.

142772884 is a deficient number, since it is larger than the sum of its proper divisors (111794240).

142772884 is a wasteful number, since it uses less digits than its factorization.

142772884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673514 (or 673512 counting only the distinct ones).

The product of its digits is 200704, while the sum is 43.

The square root of 142772884 is about 11948.7607725655. The cubic root of 142772884 is about 522.6551620562.

It can be divided in two parts, 14277 and 2884, that added together give a square (17161 = 131²).

The spelling of 142772884 in words is "one hundred forty-two million, seven hundred seventy-two thousand, eight hundred eighty-four".