1141557320 has 32 divisors (see below), whose sum is σ = 2592518400. Its totient is φ = 452353728.

The previous prime is 1141557317. The next prime is 1141557409. The reversal of 1141557320 is 237551411.

It is a super-2 number, since 2×1141557320² = 2606306229691164800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129080 + ... + 137639.

It is an arithmetic number, because the mean of its divisors is an integer number (81016200).

Almost surely, 2^1141557320 is an apocalyptic number.

1141557320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1141557320 is an abundant number, since it is smaller than the sum of its proper divisors (1450961080).

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

1141557320 is a wasteful number, since it uses less digits than its factorization.

1141557320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266837 (or 266833 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 1141557320 is about 33786.9400804512. The cubic root of 1141557320 is about 1045.1193960174.

The spelling of 1141557320 in words is "one billion, one hundred forty-one million, five hundred fifty-seven thousand, three hundred twenty".