1001141550 has 72 divisors (see below), whose sum is σ = 2693603640. Its totient is φ = 266587200.

The previous prime is 1001141527. The next prime is 1001141573. The reversal of 1001141550 is 551411001.

It is a happy number.

1001141550 is a `hidden beast` number, since 1 + 0 + 0 + 114 + 1 + 550 = 666.

It is an interprime number because it is at equal distance from previous prime (1001141527) and next prime (1001141573).

It is a Harshad number since it is a multiple of its sum of digits (18).

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 35 ways as a sum of consecutive naturals, for example, 458361 + ... + 460539.

Almost surely, 2^1001141550 is an apocalyptic number.

1001141550 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 1001141550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1346801820).

1001141550 is an abundant number, since it is smaller than the sum of its proper divisors (1692462090).

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

1001141550 is a wasteful number, since it uses less digits than its factorization.

1001141550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3218 (or 3210 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

The square root of 1001141550 is about 31640.8209438377. The cubic root of 1001141550 is about 1000.3803719655.

Adding to 1001141550 its reverse (551411001), we get a palindrome (1552552551).

The spelling of 1001141550 in words is "one billion, one million, one hundred forty-one thousand, five hundred fifty".