11481731 has 4 divisors (see below), whose sum is σ = 11748792. Its totient is φ = 11214672.

The previous prime is 11481707. The next prime is 11481737. The reversal of 11481731 is 13718411.

11481731 is digitally balanced in base 2, because in such base 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: 13718411 = 7 ⋅1959773.

It is a cyclic number.

It is not a de Polignac number, because 11481731 - 2⁶ = 11481667 is a prime.

It is a super-2 number, since 2×11481731² = 263660293512722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11481731.

It is not an unprimeable number, because it can be changed into a prime (11481737) 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, 133466 + ... + 133551.

It is an arithmetic number, because the mean of its divisors is an integer number (2937198).

Almost surely, 2^11481731 is an apocalyptic number.

11481731 is a deficient number, since it is larger than the sum of its proper divisors (267061).

11481731 is an equidigital number, since it uses as much as digits as its factorization.

11481731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267060.

The product of its digits is 672, while the sum is 26.

The square root of 11481731 is about 3388.4703038392. The cubic root of 11481731 is about 225.5982826333.

The spelling of 11481731 in words is "eleven million, four hundred eighty-one thousand, seven hundred thirty-one".