142821352 has 32 divisors (see below), whose sum is σ = 295876800. Its totient is φ = 64286464.

The previous prime is 142821319. The next prime is 142821389. The reversal of 142821352 is 253128241.

It is a self number, because there is not a number n which added to its sum of digits gives 142821352.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19702 + ... + 25957.

It is an arithmetic number, because the mean of its divisors is an integer number (9246150).

Almost surely, 2^142821352 is an apocalyptic number.

It is an amenable number.

142821352 is an abundant number, since it is smaller than the sum of its proper divisors (153055448).

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

142821352 is a wasteful number, since it uses less digits than its factorization.

142821352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45705 (or 45701 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 142821352 is about 11950.7887605798. The cubic root of 142821352 is about 522.7142983657.

Adding to 142821352 its reverse (253128241), we get a palindrome (395949593).

The spelling of 142821352 in words is "one hundred forty-two million, eight hundred twenty-one thousand, three hundred fifty-two".