11531726 has 4 divisors (see below), whose sum is σ = 17297592. Its totient is φ = 5765862.

The previous prime is 11531713. The next prime is 11531731. The reversal of 11531726 is 62713511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62713511 = 7 ⋅8959073.

It is a junction number, because it is equal to n+sod(n) for n = 11531695 and 11531704.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2882930 + ... + 2882933.

It is an arithmetic number, because the mean of its divisors is an integer number (4324398).

Almost surely, 2^11531726 is an apocalyptic number.

11531726 is a deficient number, since it is larger than the sum of its proper divisors (5765866).

11531726 is an equidigital number, since it uses as much as digits as its factorization.

11531726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5765865.

The product of its digits is 1260, while the sum is 26.

The square root of 11531726 is about 3395.8395132868. The cubic root of 11531726 is about 225.9252500330.

The spelling of 11531726 in words is "eleven million, five hundred thirty-one thousand, seven hundred twenty-six".