1133040405 has 32 divisors (see below), whose sum is σ = 2074834944. Its totient is φ = 517214016.

The previous prime is 1133040401. The next prime is 1133040407. The reversal of 1133040405 is 5040403311.

It is not a de Polignac number, because 1133040405 - 2² = 1133040401 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133040401) 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 31 ways as a sum of consecutive naturals, for example, 68914 + ... + 83756.

It is an arithmetic number, because the mean of its divisors is an integer number (64838592).

Almost surely, 2^1133040405 is an apocalyptic number.

1133040405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1133040405 is a deficient number, since it is larger than the sum of its proper divisors (941794539).

1133040405 is a wasteful number, since it uses less digits than its factorization.

1133040405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15585.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1133040405 is about 33660.6655460049. The cubic root of 1133040405 is about 1042.5137677966.

Adding to 1133040405 its reverse (5040403311), we get a palindrome (6173443716).

The spelling of 1133040405 in words is "one billion, one hundred thirty-three million, forty thousand, four hundred five".