142220036155 has 4 divisors (see below), whose sum is σ = 170664043392. Its totient is φ = 113776028920.

The previous prime is 142220036107. The next prime is 142220036221. The reversal of 142220036155 is 551630022241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 551630022241 = 26141 ⋅21102101.

It is not a de Polignac number, because 142220036155 - 2²³ = 142211647547 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14222003611 + ... + 14222003620.

It is an arithmetic number, because the mean of its divisors is an integer number (42666010848).

Almost surely, 2^142220036155 is an apocalyptic number.

142220036155 is a deficient number, since it is larger than the sum of its proper divisors (28444007237).

142220036155 is an equidigital number, since it uses as much as digits as its factorization.

142220036155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28444007236.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 142220036155 its reverse (551630022241), we get a palindrome (693850058396).

The spelling of 142220036155 in words is "one hundred forty-two billion, two hundred twenty million, thirty-six thousand, one hundred fifty-five".