11514431 has 4 divisors (see below), whose sum is σ = 11523000. Its totient is φ = 11505864.

The previous prime is 11514427. The next prime is 11514449. The reversal of 11514431 is 13441511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11514431 - 2² = 11514427 is a prime.

It is a super-2 number, since 2×11514431² = 265164242507522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11514401) 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, 1781 + ... + 5118.

It is an arithmetic number, because the mean of its divisors is an integer number (2880750).

Almost surely, 2^11514431 is an apocalyptic number.

11514431 is a deficient number, since it is larger than the sum of its proper divisors (8569).

11514431 is an equidigital number, since it uses as much as digits as its factorization.

11514431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8568.

The product of its digits is 240, while the sum is 20.

The square root of 11514431 is about 3393.2920593430. The cubic root of 11514431 is about 225.8122478040.

Adding to 11514431 its reverse (13441511), we get a palindrome (24955942).

The spelling of 11514431 in words is "eleven million, five hundred fourteen thousand, four hundred thirty-one".