155101200 has 120 divisors (see below), whose sum is σ = 526135968. Its totient is φ = 38922240.

The previous prime is 155101171. The next prime is 155101229. The reversal of 155101200 is 2101551.

It is an interprime number because it is at equal distance from previous prime (155101171) and next prime (155101229).

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 155101200.

It is an unprimeable number.

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, 16599 + ... + 24201.

Almost surely, 2^155101200 is an apocalyptic number.

155101200 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 155101200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263067984).

155101200 is an abundant number, since it is smaller than the sum of its proper divisors (371034768).

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

155101200 is a wasteful number, since it uses less digits than its factorization.

155101200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7641 (or 7630 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 155101200 is about 12453.9632246125. The cubic root of 155101200 is about 537.2854164174.

Adding to 155101200 its reverse (2101551), we get a palindrome (157202751).

The spelling of 155101200 in words is "one hundred fifty-five million, one hundred one thousand, two hundred".