145222135223155 has 16 divisors (see below), whose sum is σ = 174997288857600. Its totient is φ = 115690599152640.

The previous prime is 145222135223147. The next prime is 145222135223219. The reversal of 145222135223155 is 551322531222541.

It is not a de Polignac number, because 145222135223155 - 2³ = 145222135223147 is a prime.

It is a super-2 number, since 2×145222135223155² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25146511 + ... + 30377479.

It is an arithmetic number, because the mean of its divisors is an integer number (10937330553600).

Almost surely, 2^{145222135223155} is an apocalyptic number.

145222135223155 is a deficient number, since it is larger than the sum of its proper divisors (29775153634445).

145222135223155 is a wasteful number, since it uses less digits than its factorization.

145222135223155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5254254.

The product of its digits is 720000, while the sum is 43.

Adding to 145222135223155 its reverse (551322531222541), we get a palindrome (696544666445696).

The spelling of 145222135223155 in words is "one hundred forty-five trillion, two hundred twenty-two billion, one hundred thirty-five million, two hundred twenty-three thousand, one hundred fifty-five".