1131844554 has 48 divisors (see below), whose sum is σ = 2625199200. Its totient is φ = 351360288.

The previous prime is 1131844537. The next prime is 1131844579. The reversal of 1131844554 is 4554481311.

1131844554 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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, 7869 + ... + 48224.

It is an arithmetic number, because the mean of its divisors is an integer number (54691650).

Almost surely, 2^1131844554 is an apocalyptic number.

1131844554 is an abundant number, since it is smaller than the sum of its proper divisors (1493354646).

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

1131844554 is a wasteful number, since it uses less digits than its factorization.

1131844554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56179 (or 56176 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 1131844554 is about 33642.8975268183. The cubic root of 1131844554 is about 1042.1468700278.

The spelling of 1131844554 in words is "one billion, one hundred thirty-one million, eight hundred forty-four thousand, five hundred fifty-four".