11045531 has 12 divisors (see below), whose sum is σ = 12933072. Its totient is φ = 9405648.

The previous prime is 11045521. The next prime is 11045561. The reversal of 11045531 is 13554011.

It is not a de Polignac number, because 11045531 - 2⁶ = 11045467 is a prime.

It is a super-2 number, since 2×11045531² = 244007510143922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11045521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7826 + ... + 9128.

It is an arithmetic number, because the mean of its divisors is an integer number (1077756).

Almost surely, 2^11045531 is an apocalyptic number.

11045531 is a deficient number, since it is larger than the sum of its proper divisors (1887541).

11045531 is a wasteful number, since it uses less digits than its factorization.

11045531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490 (or 1483 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 11045531 is about 3323.4817586381. The cubic root of 11045531 is about 222.7044352589.

Adding to 11045531 its reverse (13554011), we get a palindrome (24599542).

The spelling of 11045531 in words is "eleven million, forty-five thousand, five hundred thirty-one".