11485831 has 4 divisors (see below), whose sum is σ = 13126672. Its totient is φ = 9844992.

The previous prime is 11485811. The next prime is 11485847. The reversal of 11485831 is 13858411.

11485831 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13858411 = 7 ⋅1979773.

It is a cyclic number.

It is not a de Polignac number, because 11485831 - 2⁷ = 11485703 is a prime.

It is a super-3 number, since 3×11485831³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

11485831 is strictly pandigital in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 11485793 and 11485802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11485811) 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, 820410 + ... + 820423.

It is an arithmetic number, because the mean of its divisors is an integer number (3281668).

Almost surely, 2^11485831 is an apocalyptic number.

11485831 is a deficient number, since it is larger than the sum of its proper divisors (1640841).

11485831 is an equidigital number, since it uses as much as digits as its factorization.

11485831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640840.

The product of its digits is 3840, while the sum is 31.

The square root of 11485831 is about 3389.0752425994. The cubic root of 11485831 is about 225.6251323270.

The spelling of 11485831 in words is "eleven million, four hundred eighty-five thousand, eight hundred thirty-one".