155630200 has 144 divisors (see below), whose sum is σ = 408177000. Its totient is φ = 55123200.

The previous prime is 155630191. The next prime is 155630203. The reversal of 155630200 is 2036551.

It is a happy number.

155630200 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 (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155630203) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1427746 + ... + 1427854.

Almost surely, 2^155630200 is an apocalyptic number.

155630200 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 155630200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204088500).

155630200 is an abundant number, since it is smaller than the sum of its proper divisors (252546800).

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

155630200 is a wasteful number, since it uses less digits than its factorization.

155630200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 155630200 is about 12475.1833653859. The cubic root of 155630200 is about 537.8955588366.

Adding to 155630200 its reverse (2036551), we get a palindrome (157666751).

The spelling of 155630200 in words is "one hundred fifty-five million, six hundred thirty thousand, two hundred".