155481042 has 32 divisors (see below), whose sum is σ = 315627840. Its totient is φ = 51054080.

The previous prime is 155481041. The next prime is 155481059. The reversal of 155481042 is 240184551.

It is not an unprimeable number, because it can be changed into a prime (155481041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261898 + ... + 262490.

It is an arithmetic number, because the mean of its divisors is an integer number (9863370).

Almost surely, 2^155481042 is an apocalyptic number.

155481042 is an abundant number, since it is smaller than the sum of its proper divisors (160146798).

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

155481042 is a wasteful number, since it uses less digits than its factorization.

155481042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178.

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 155481042 is about 12469.2037436237. The cubic root of 155481042 is about 537.7236618846.

The spelling of 155481042 in words is "one hundred fifty-five million, four hundred eighty-one thousand, forty-two".