155412 has 24 divisors (see below), whose sum is σ = 403200. Its totient is φ = 51768.

The previous prime is 155399. The next prime is 155413. The reversal of 155412 is 214551.

155412 is digitally balanced in base 2, 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 (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 612 + ... + 827.

It is an arithmetic number, because the mean of its divisors is an integer number (16800).

2¹⁵⁵⁴¹² is an apocalyptic number.

155412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155412 is an abundant number, since it is smaller than the sum of its proper divisors (247788).

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

155412 is a wasteful number, since it uses less digits than its factorization.

155412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1452 (or 1444 counting only the distinct ones).

The product of its digits is 200, while the sum is 18.

The square root of 155412 is about 394.2232869834. The cubic root of 155412 is about 53.7644057295.

Adding to 155412 its reverse (214551), we get a palindrome (369963).

The spelling of 155412 in words is "one hundred fifty-five thousand, four hundred twelve".