155144200 has 96 divisors (see below), whose sum is σ = 389707200. Its totient is φ = 57263360.

The previous prime is 155144191. The next prime is 155144203. The reversal of 155144200 is 2441551.

It is not an unprimeable number, because it can be changed into a prime (155144203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 132819 + ... + 133981.

It is an arithmetic number, because the mean of its divisors is an integer number (4059450).

Almost surely, 2^155144200 is an apocalyptic number.

155144200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155144200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194853600).

155144200 is an abundant number, since it is smaller than the sum of its proper divisors (234563000).

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

155144200 is a wasteful number, since it uses less digits than its factorization.

155144200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231 (or 1222 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 155144200 is about 12455.6894630526. The cubic root of 155144200 is about 537.3350638695.

Adding to 155144200 its reverse (2441551), we get a palindrome (157585751).

The spelling of 155144200 in words is "one hundred fifty-five million, one hundred forty-four thousand, two hundred".