155271030 has 48 divisors (see below), whose sum is σ = 395882640. Its totient is φ = 38967808.

The previous prime is 155271023. The next prime is 155271041. The reversal of 155271030 is 30172551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 285 + ... + 17624.

It is an arithmetic number, because the mean of its divisors is an integer number (8247555).

Almost surely, 2^155271030 is an apocalyptic number.

155271030 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 155271030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197941320).

155271030 is an abundant number, since it is smaller than the sum of its proper divisors (240611610).

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

155271030 is a wasteful number, since it uses less digits than its factorization.

155271030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17953 (or 17936 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 155271030 is about 12460.7796706306. The cubic root of 155271030 is about 537.4814473495.

The spelling of 155271030 in words is "one hundred fifty-five million, two hundred seventy-one thousand, thirty".