142421316 has 48 divisors (see below), whose sum is σ = 344332800. Its totient is φ = 45768960.

The previous prime is 142421311. The next prime is 142421329. The reversal of 142421316 is 613124241.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (142421311) by changing a digit.

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, 129280 + ... + 130376.

It is an arithmetic number, because the mean of its divisors is an integer number (7173600).

Almost surely, 2^142421316 is an apocalyptic number.

It is an amenable number.

142421316 is an abundant number, since it is smaller than the sum of its proper divisors (201911484).

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

142421316 is a wasteful number, since it uses less digits than its factorization.

142421316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1484 (or 1482 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 142421316 is about 11934.0402211489. The cubic root of 142421316 is about 522.2258091466.

Adding to 142421316 its reverse (613124241), we get a palindrome (755545557).

The spelling of 142421316 in words is "one hundred forty-two million, four hundred twenty-one thousand, three hundred sixteen".