142522416 has 80 divisors (see below), whose sum is σ = 414244320. Its totient is φ = 47495808.

The previous prime is 142522379. The next prime is 142522427. The reversal of 142522416 is 614225241.

142522416 is a `hidden beast` number, since 1 + 425 + 224 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 142522416.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32956 + ... + 37028.

It is an arithmetic number, because the mean of its divisors is an integer number (5178054).

Almost surely, 2^142522416 is an apocalyptic number.

142522416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142522416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207122160).

142522416 is an abundant number, since it is smaller than the sum of its proper divisors (271721904).

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

142522416 is an frugal number, since it uses more digits than its factorization.

142522416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4102 (or 4078 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 142522416 is about 11938.2752523135. The cubic root of 142522416 is about 522.3493499732.

Adding to 142522416 its reverse (614225241), we get a palindrome (756747657).

The spelling of 142522416 in words is "one hundred forty-two million, five hundred twenty-two thousand, four hundred sixteen".