155122112 has 28 divisors (see below), whose sum is σ = 309905400. Its totient is φ = 77035776.

The previous prime is 155122091. The next prime is 155122117. The reversal of 155122112 is 211221551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155122117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1403 + ... + 17669.

It is an arithmetic number, because the mean of its divisors is an integer number (11068050).

Almost surely, 2^155122112 is an apocalyptic number.

It is an amenable number.

155122112 is a deficient number, since it is larger than the sum of its proper divisors (154783288).

155122112 is a wasteful number, since it uses less digits than its factorization.

155122112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16428 (or 16418 counting only the distinct ones).

The product of its digits is 200, while the sum is 20.

The square root of 155122112 is about 12454.8027684103. The cubic root of 155122112 is about 537.3095623894.

Adding to 155122112 its reverse (211221551), we get a palindrome (366343663).

The spelling of 155122112 in words is "one hundred fifty-five million, one hundred twenty-two thousand, one hundred twelve".