11440137 has 4 divisors (see below), whose sum is σ = 15253520. Its totient is φ = 7626756.

The previous prime is 11440127. The next prime is 11440151. The reversal of 11440137 is 73104411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 11440137 - 2⁶ = 11440073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11440127) 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, 1906687 + ... + 1906692.

It is an arithmetic number, because the mean of its divisors is an integer number (3813380).

Almost surely, 2^11440137 is an apocalyptic number.

It is an amenable number.

11440137 is a deficient number, since it is larger than the sum of its proper divisors (3813383).

11440137 is an equidigital number, since it uses as much as digits as its factorization.

11440137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3813382.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 11440137 is about 3382.3271574465. The cubic root of 11440137 is about 225.3255337235.

Adding to 11440137 its reverse (73104411), we get a palindrome (84544548).

The spelling of 11440137 in words is "eleven million, four hundred forty thousand, one hundred thirty-seven".