155481044 has 6 divisors (see below), whose sum is σ = 272091834. Its totient is φ = 77740520.

The previous prime is 155481041. The next prime is 155481059. The reversal of 155481044 is 440184551.

155481044 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 154504900 + 976144 = 12430^2 + 988^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 155481044.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 19435127 + ... + 19435134.

It is an arithmetic number, because the mean of its divisors is an integer number (45348639).

Almost surely, 2^155481044 is an apocalyptic number.

It is an amenable number.

155481044 is a deficient number, since it is larger than the sum of its proper divisors (116610790).

155481044 is a wasteful number, since it uses less digits than its factorization.

155481044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38870265 (or 38870263 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 32.

The square root of 155481044 is about 12469.2038238213. The cubic root of 155481044 is about 537.7236641903.

The spelling of 155481044 in words is "one hundred fifty-five million, four hundred eighty-one thousand, forty-four".