142900776 has 96 divisors (see below), whose sum is σ = 412200360. Its totient is φ = 44568576.

The previous prime is 142900753. The next prime is 142900829. The reversal of 142900776 is 677009241.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 100520676 + 42380100 = 10026^2 + 6510^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 142900776.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 382926 + ... + 383298.

Almost surely, 2^142900776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142900776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206100180).

142900776 is an abundant number, since it is smaller than the sum of its proper divisors (269299584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142900776 is a wasteful number, since it uses less digits than its factorization.

142900776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715 (or 708 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 142900776 is about 11954.1112593116. Note that the first 3 decimals coincide. The cubic root of 142900776 is about 522.8111754933.

The spelling of 142900776 in words is "one hundred forty-two million, nine hundred thousand, seven hundred seventy-six".