1133455531 has 8 divisors (see below), whose sum is σ = 1222631424. Its totient is φ = 1044563520.

The previous prime is 1133455529. The next prime is 1133455541. The reversal of 1133455531 is 1355543311.

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

It is not a de Polignac number, because 1133455531 - 2¹ = 1133455529 is a prime.

It is a super-2 number, since 2×1133455531² = 2569442881508983922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1133455493 and 1133455502.

It is not an unprimeable number, because it can be changed into a prime (1133455541) 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, 62635 + ... + 78676.

It is an arithmetic number, because the mean of its divisors is an integer number (152828928).

Almost surely, 2^1133455531 is an apocalyptic number.

1133455531 is a deficient number, since it is larger than the sum of its proper divisors (89175893).

1133455531 is a wasteful number, since it uses less digits than its factorization.

1133455531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141941.

The product of its digits is 13500, while the sum is 31.

The square root of 1133455531 is about 33666.8313180792. The cubic root of 1133455531 is about 1042.6410717967.

Adding to 1133455531 its reverse (1355543311), we get a palindrome (2488998842).

The spelling of 1133455531 in words is "one billion, one hundred thirty-three million, four hundred fifty-five thousand, five hundred thirty-one".