155300004 has 120 divisors (see below), whose sum is σ = 423960768. Its totient is φ = 49533120.

The previous prime is 155300003. The next prime is 155300011. The reversal of 155300004 is 400003551.

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

It is a self number, because there is not a number n which added to its sum of digits gives 155300004.

It is not an unprimeable number, because it can be changed into a prime (155300003) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 989094 + ... + 989250.

Almost surely, 2^155300004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155300004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211980384).

155300004 is an abundant number, since it is smaller than the sum of its proper divisors (268660764).

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

155300004 is a wasteful number, since it uses less digits than its factorization.

155300004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 155300004 is about 12461.9422242281. The cubic root of 155300004 is about 537.5148771076.

Adding to 155300004 its reverse (400003551), we get a palindrome (555303555).

The spelling of 155300004 in words is "one hundred fifty-five million, three hundred thousand, four".