1550133126 has 80 divisors (see below), whose sum is σ = 3670220400. Its totient is φ = 487648512.

The previous prime is 1550133121. The next prime is 1550133163. The reversal of 1550133126 is 6213310551.

1550133126 is a `hidden beast` number, since 1 + 5 + 501 + 33 + 126 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 1550133126.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1550133121) 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, 962610 + ... + 964218.

It is an arithmetic number, because the mean of its divisors is an integer number (45877755).

Almost surely, 2^1550133126 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1550133126, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1835110200).

1550133126 is an abundant number, since it is smaller than the sum of its proper divisors (2120087274).

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

1550133126 is a wasteful number, since it uses less digits than its factorization.

1550133126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1955 (or 1946 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 1550133126 is about 39371.7300356487. The cubic root of 1550133126 is about 1157.3276587857.

Adding to 1550133126 its reverse (6213310551), we get a palindrome (7763443677).

The spelling of 1550133126 in words is "one billion, five hundred fifty million, one hundred thirty-three thousand, one hundred twenty-six".