1146556011 has 4 divisors (see below), whose sum is σ = 1528741352. Its totient is φ = 764370672.

The previous prime is 1146555997. The next prime is 1146556013. The reversal of 1146556011 is 1106556411.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1146556011 - 2⁵ = 1146555979 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1146556011.

It is not an unprimeable number, because it can be changed into a prime (1146556013) 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, 191092666 + ... + 191092671.

It is an arithmetic number, because the mean of its divisors is an integer number (382185338).

Almost surely, 2^1146556011 is an apocalyptic number.

1146556011 is a deficient number, since it is larger than the sum of its proper divisors (382185341).

1146556011 is an equidigital number, since it uses as much as digits as its factorization.

1146556011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382185340.

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 1146556011 is about 33860.8329932977. The cubic root of 1146556011 is about 1046.6426432453.

It can be divided in two parts, 11465 and 56011, that added together give a palindrome (67476).

The spelling of 1146556011 in words is "one billion, one hundred forty-six million, five hundred fifty-six thousand, eleven".