142819976 has 48 divisors (see below), whose sum is σ = 298197900. Its totient is φ = 63745920.

The previous prime is 142819973. The next prime is 142819997. The reversal of 142819976 is 679918241.

It can be written as a sum of positive squares in 2 ways, for example, as 115047076 + 27772900 = 10726^2 + 5270^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 142819976.

It is not an unprimeable number, because it can be changed into a prime (142819973) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99230 + ... + 100658.

Almost surely, 2^142819976 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 142819976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149098950).

142819976 is an abundant number, since it is smaller than the sum of its proper divisors (155377924).

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

142819976 is a wasteful number, since it uses less digits than its factorization.

142819976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510 (or 1475 counting only the distinct ones).

The product of its digits is 217728, while the sum is 47.

The square root of 142819976 is about 11950.7311910192. The cubic root of 142819976 is about 522.7126196784.

The spelling of 142819976 in words is "one hundred forty-two million, eight hundred nineteen thousand, nine hundred seventy-six".