1131478 has 8 divisors (see below), whose sum is σ = 1733472. Its totient is φ = 553656.

The previous prime is 1131467. The next prime is 1131479. The reversal of 1131478 is 8741311.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5925 + ... + 6112.

It is an arithmetic number, because the mean of its divisors is an integer number (216684).

2^1131478 is an apocalyptic number.

1131478 is a deficient number, since it is larger than the sum of its proper divisors (601994).

1131478 is a wasteful number, since it uses less digits than its factorization.

1131478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12086.

The product of its digits is 672, while the sum is 25.

The square root of 1131478 is about 1063.7095468219. The cubic root of 1131478 is about 104.2034356241.

Adding to 1131478 its reverse (8741311), we get a palindrome (9872789).

The spelling of 1131478 in words is "one million, one hundred thirty-one thousand, four hundred seventy-eight".