1555134150 has 48 divisors (see below), whose sum is σ = 3867609600. Its totient is φ = 413532960.

The previous prime is 1555134131. The next prime is 1555134179. The reversal of 1555134150 is 514315551.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 23 ways as a sum of consecutive naturals, for example, 39411 + ... + 68289.

It is an arithmetic number, because the mean of its divisors is an integer number (80575200).

Almost surely, 2^1555134150 is an apocalyptic number.

1555134150 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 1555134150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1933804800).

1555134150 is an abundant number, since it is smaller than the sum of its proper divisors (2312475450).

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

1555134150 is a wasteful number, since it uses less digits than its factorization.

1555134150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29253 (or 29248 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 30.

The square root of 1555134150 is about 39435.1892349967. The cubic root of 1555134150 is about 1158.5709090645.

The spelling of 1555134150 in words is "one billion, five hundred fifty-five million, one hundred thirty-four thousand, one hundred fifty".