142621116 has 24 divisors (see below), whose sum is σ = 363035904. Its totient is φ = 43218480.

The previous prime is 142621097. The next prime is 142621121. The reversal of 142621116 is 611126241.

It is a happy number.

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

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 540100 + ... + 540363.

It is an arithmetic number, because the mean of its divisors is an integer number (15126496).

Almost surely, 2^142621116 is an apocalyptic number.

It is an amenable number.

142621116 is an abundant number, since it is smaller than the sum of its proper divisors (220414788).

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

142621116 is a wasteful number, since it uses less digits than its factorization.

142621116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080481 (or 1080479 counting only the distinct ones).

The product of its digits is 576, while the sum is 24.

The square root of 142621116 is about 11942.4082998363. The cubic root of 142621116 is about 522.4699017330.

Adding to 142621116 its reverse (611126241), we get a palindrome (753747357).

The spelling of 142621116 in words is "one hundred forty-two million, six hundred twenty-one thousand, one hundred sixteen".