1131056146 has 16 divisors (see below), whose sum is σ = 1885742208. Its totient is φ = 504415600.

The previous prime is 1131056141. The next prime is 1131056161. The reversal of 1131056146 is 6416501311.

It is not an unprimeable number, because it can be changed into a prime (1131056141) 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, 483850 + ... + 486181.

It is an arithmetic number, because the mean of its divisors is an integer number (117858888).

Almost surely, 2^1131056146 is an apocalyptic number.

1131056146 is a deficient number, since it is larger than the sum of its proper divisors (754686062).

1131056146 is a wasteful number, since it uses less digits than its factorization.

1131056146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970097.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 1131056146 is about 33631.1781833465. The cubic root of 1131056146 is about 1041.9048380349.

Adding to 1131056146 its reverse (6416501311), we get a palindrome (7547557457).

The spelling of 1131056146 in words is "one billion, one hundred thirty-one million, fifty-six thousand, one hundred forty-six".