155444412 has 12 divisors (see below), whose sum is σ = 362703656. Its totient is φ = 51814800.

The previous prime is 155444371. The next prime is 155444417. The reversal of 155444412 is 214444551.

155444412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 155444412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155444417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6476839 + ... + 6476862.

Almost surely, 2^155444412 is an apocalyptic number.

155444412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155444412 is an abundant number, since it is smaller than the sum of its proper divisors (207259244).

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

155444412 is a wasteful number, since it uses less digits than its factorization.

155444412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12953708 (or 12953706 counting only the distinct ones).

The product of its digits is 12800, while the sum is 30.

The square root of 155444412 is about 12467.7348383738. The cubic root of 155444412 is about 537.6814308737.

Adding to 155444412 its reverse (214444551), we get a palindrome (369888963).

The spelling of 155444412 in words is "one hundred fifty-five million, four hundred forty-four thousand, four hundred twelve".