155022144 has 28 divisors (see below), whose sum is σ = 410163264. Its totient is φ = 51673984.

The previous prime is 155022071. The next prime is 155022149. The reversal of 155022144 is 441220551.

155022144 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155022149) 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 3 ways as a sum of consecutive naturals, for example, 403512 + ... + 403895.

It is an arithmetic number, because the mean of its divisors is an integer number (14648688).

Almost surely, 2^155022144 is an apocalyptic number.

It is an amenable number.

155022144 is an abundant number, since it is smaller than the sum of its proper divisors (255141120).

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

155022144 is an equidigital number, since it uses as much as digits as its factorization.

155022144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807422 (or 807412 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 155022144 is about 12450.7888906687. The cubic root of 155022144 is about 537.1941150507.

Adding to 155022144 its reverse (441220551), we get a palindrome (596242695).

The spelling of 155022144 in words is "one hundred fifty-five million, twenty-two thousand, one hundred forty-four".