1131356160 has 560 divisors, whose sum is σ = 4567318272. Its totient is φ = 265420800.

The previous prime is 1131356153. The next prime is 1131356183. The reversal of 1131356160 is 616531311.

1131356160 is a `hidden beast` number, since 1 + 13 + 1 + 35 + 616 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 36495345 + ... + 36495375.

Almost surely, 2^1131356160 is an apocalyptic number.

1131356160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1131356160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2283659136).

1131356160 is an abundant number, since it is smaller than the sum of its proper divisors (3435962112).

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

1131356160 is an equidigital number, since it uses as much as digits as its factorization.

1131356160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85 (or 52 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 1131356160 is about 33635.6382427924. The cubic root of 1131356160 is about 1041.9969520605.

Adding to 1131356160 its reverse (616531311), we get a palindrome (1747887471).

The spelling of 1131356160 in words is "one billion, one hundred thirty-one million, three hundred fifty-six thousand, one hundred sixty".