11531474 has 8 divisors (see below), whose sum is σ = 18314748. Its totient is φ = 5426560.

The previous prime is 11531467. The next prime is 11531477. The reversal of 11531474 is 47413511.

It can be written as a sum of positive squares in 2 ways, for example, as 9150625 + 2380849 = 3025^2 + 1543^2 .

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

It is a super-2 number, since 2×11531474² = 265949785225352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11531477) 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, 169547 + ... + 169614.

Almost surely, 2^11531474 is an apocalyptic number.

11531474 is a deficient number, since it is larger than the sum of its proper divisors (6783274).

11531474 is a wasteful number, since it uses less digits than its factorization.

11531474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339180.

The product of its digits is 1680, while the sum is 26.

The square root of 11531474 is about 3395.8024088571. The cubic root of 11531474 is about 225.9236043245.

Adding to 11531474 its reverse (47413511), we get a palindrome (58944985).

The spelling of 11531474 in words is "eleven million, five hundred thirty-one thousand, four hundred seventy-four".