1131472219 has 8 divisors (see below), whose sum is σ = 1168534080. Its totient is φ = 1094951616.

The previous prime is 1131472217. The next prime is 1131472229. The reversal of 1131472219 is 9122741311.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1131472219 - 2¹ = 1131472217 is a prime.

It is a super-2 number, since 2×1131472219² = 2560458764737567922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131472217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131064 + ... + 139429.

It is an arithmetic number, because the mean of its divisors is an integer number (146066760).

Almost surely, 2^1131472219 is an apocalyptic number.

1131472219 is a deficient number, since it is larger than the sum of its proper divisors (37061861).

1131472219 is an equidigital number, since it uses as much as digits as its factorization.

1131472219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270629.

The product of its digits is 3024, while the sum is 31.

The square root of 1131472219 is about 33637.3634371067. The cubic root of 1131472219 is about 1042.0325815682.

The spelling of 1131472219 in words is "one billion, one hundred thirty-one million, four hundred seventy-two thousand, two hundred nineteen".