1550145300 has 144 divisors (see below), whose sum is σ = 4937308992. Its totient is φ = 372377600.

The previous prime is 1550145287. The next prime is 1550145301. The reversal of 1550145300 is 35410551.

It is a super-2 number, since 2×1550145300² = 4805900902224180000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1550145301) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 370822 + ... + 374978.

It is an arithmetic number, because the mean of its divisors is an integer number (34286868).

Almost surely, 2^1550145300 is an apocalyptic number.

1550145300 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 1550145300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2468654496).

1550145300 is an abundant number, since it is smaller than the sum of its proper divisors (3387163692).

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

1550145300 is a wasteful number, since it uses less digits than its factorization.

1550145300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4298 (or 4291 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 1550145300 is about 39371.8846386606. The cubic root of 1550145300 is about 1157.3306884760.

Adding to 1550145300 its reverse (35410551), we get a palindrome (1585555851).

The spelling of 1550145300 in words is "one billion, five hundred fifty million, one hundred forty-five thousand, three hundred".