142216755 has 16 divisors (see below), whose sum is σ = 231841440. Its totient is φ = 74417408.

The previous prime is 142216721. The next prime is 142216799. The reversal of 142216755 is 557612241.

It is a cyclic number.

It is not a de Polignac number, because 142216755 - 2¹⁴ = 142200371 is a prime.

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, 88650 + ... + 90239.

It is an arithmetic number, because the mean of its divisors is an integer number (14490090).

Almost surely, 2^142216755 is an apocalyptic number.

142216755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142216755 is a deficient number, since it is larger than the sum of its proper divisors (89624685).

142216755 is a wasteful number, since it uses less digits than its factorization.

142216755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178950.

The product of its digits is 16800, while the sum is 33.

The square root of 142216755 is about 11925.4666575359. The cubic root of 142216755 is about 521.9756634916.

Adding to 142216755 its reverse (557612241), we get a palindrome (699828996).

The spelling of 142216755 in words is "one hundred forty-two million, two hundred sixteen thousand, seven hundred fifty-five".