11630138 has 16 divisors (see below), whose sum is σ = 19097736. Its totient is φ = 5279040.

The previous prime is 11630137. The next prime is 11630149. The reversal of 11630138 is 83103611.

It can be written as a sum of positive squares in 4 ways, for example, as 1216609 + 10413529 = 1103^2 + 3227^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11630137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2081 + ... + 5252.

Almost surely, 2^11630138 is an apocalyptic number.

11630138 is a deficient number, since it is larger than the sum of its proper divisors (7467598).

11630138 is a wasteful number, since it uses less digits than its factorization.

11630138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7409.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 11630138 is about 3410.2988138871. The cubic root of 11630138 is about 226.5661140890.

Adding to 11630138 its reverse (83103611), we get a palindrome (94733749).

The spelling of 11630138 in words is "eleven million, six hundred thirty thousand, one hundred thirty-eight".