155024100 has 216 divisors, whose sum is σ = 606086208. Its totient is φ = 32198400.

The previous prime is 155024081. The next prime is 155024101. The reversal of 155024100 is 1420551.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (155024101) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 68182 + ... + 70418.

Almost surely, 2^155024100 is an apocalyptic number.

155024100 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 155024100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303043104).

155024100 is an abundant number, since it is smaller than the sum of its proper divisors (451062108).

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

155024100 is a wasteful number, since it uses less digits than its factorization.

155024100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275 (or 2265 counting only the distinct ones).

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

The square root of 155024100 is about 12450.8674396606. The cubic root of 155024100 is about 537.1963743995.

Adding to 155024100 its reverse (1420551), we get a palindrome (156444651).

The spelling of 155024100 in words is "one hundred fifty-five million, twenty-four thousand, one hundred".