1131141550 has 48 divisors (see below), whose sum is σ = 2623082112. Its totient is φ = 352562400.

The previous prime is 1131141533. The next prime is 1131141577. The reversal of 1131141550 is 551411311.

It is a super-2 number, since 2×1131141550² = 2558962412272805000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 143052 + ... + 150751.

It is an arithmetic number, because the mean of its divisors is an integer number (54647544).

Almost surely, 2^1131141550 is an apocalyptic number.

1131141550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131141550 is an abundant number, since it is smaller than the sum of its proper divisors (1491940562).

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

1131141550 is a wasteful number, since it uses less digits than its factorization.

1131141550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293833 (or 293828 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 22.

The square root of 1131141550 is about 33632.4478740397. The cubic root of 1131141550 is about 1041.9310614903.

Adding to 1131141550 its reverse (551411311), we get a palindrome (1682552861).

The spelling of 1131141550 in words is "one billion, one hundred thirty-one million, one hundred forty-one thousand, five hundred fifty".