155016030 has 128 divisors (see below), whose sum is σ = 430230528. Its totient is φ = 35407872.

The previous prime is 155016007. The next prime is 155016061. The reversal of 155016030 is 30610551.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 155015988 and 155016006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 682777 + ... + 683003.

It is an arithmetic number, because the mean of its divisors is an integer number (3361176).

Almost surely, 2^155016030 is an apocalyptic number.

155016030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 155016030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215115264).

155016030 is an abundant number, since it is smaller than the sum of its proper divisors (275214498).

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

155016030 is a wasteful number, since it uses less digits than its factorization.

155016030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 155016030 is about 12450.5433616369. The cubic root of 155016030 is about 537.1870527306.

Adding to 155016030 its reverse (30610551), we get a palindrome (185626581).

The spelling of 155016030 in words is "one hundred fifty-five million, sixteen thousand, thirty".