1133554121 has 16 divisors (see below), whose sum is σ = 1324154880. Its totient is φ = 950337360.

The previous prime is 1133554109. The next prime is 1133554141. The reversal of 1133554121 is 1214553311.

It is not a de Polignac number, because 1133554121 - 2¹⁴ = 1133537737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1133554141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54140 + ... + 72098.

It is an arithmetic number, because the mean of its divisors is an integer number (82759680).

Almost surely, 2^1133554121 is an apocalyptic number.

It is an amenable number.

1133554121 is a deficient number, since it is larger than the sum of its proper divisors (190600759).

1133554121 is a wasteful number, since it uses less digits than its factorization.

1133554121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18164.

The product of its digits is 1800, while the sum is 26.

The square root of 1133554121 is about 33668.2954870008. The cubic root of 1133554121 is about 1042.6713011853.

It can be divided in two parts, 11335 and 54121, that added together give a palindrome (65456).

The spelling of 1133554121 in words is "one billion, one hundred thirty-three million, five hundred fifty-four thousand, one hundred twenty-one".