155432122 has 16 divisors (see below), whose sum is σ = 259856640. Its totient is φ = 69294528.

The previous prime is 155432119. The next prime is 155432129. The reversal of 155432122 is 221234551.

155432122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (155432129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119658 + ... + 120949.

It is an arithmetic number, because the mean of its divisors is an integer number (16241040).

Almost surely, 2^155432122 is an apocalyptic number.

155432122 is a deficient number, since it is larger than the sum of its proper divisors (104424518).

155432122 is a wasteful number, since it uses less digits than its factorization.

155432122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240645.

The product of its digits is 2400, while the sum is 25.

The square root of 155432122 is about 12467.2419564232. The cubic root of 155432122 is about 537.6672601511.

Adding to 155432122 its reverse (221234551), we get a palindrome (376666673).

The spelling of 155432122 in words is "one hundred fifty-five million, four hundred thirty-two thousand, one hundred twenty-two".