155854122 has 16 divisors (see below), whose sum is σ = 312193440. Its totient is φ = 51870512.

The previous prime is 155854109. The next prime is 155854133. The reversal of 155854122 is 221458551.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15972 + ... + 23807.

It is an arithmetic number, because the mean of its divisors is an integer number (19512090).

Almost surely, 2^155854122 is an apocalyptic number.

155854122 is an abundant number, since it is smaller than the sum of its proper divisors (156339318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155854122 is a wasteful number, since it uses less digits than its factorization.

155854122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40437.

The product of its digits is 16000, while the sum is 33.

The square root of 155854122 is about 12484.1548372327. The cubic root of 155854122 is about 538.1534113805.

The spelling of 155854122 in words is "one hundred fifty-five million, eight hundred fifty-four thousand, one hundred twenty-two".