11738945 has 4 divisors (see below), whose sum is σ = 14086740. Its totient is φ = 9391152.

The previous prime is 11738933. The next prime is 11738971. The reversal of 11738945 is 54983711.

11738945 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8862529 + 2876416 = 2977^2 + 1696^2 .

It is a cyclic number.

It is not a de Polignac number, because 11738945 - 2⁴ = 11738929 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11738899 and 11738908.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1173890 + ... + 1173899.

It is an arithmetic number, because the mean of its divisors is an integer number (3521685).

Almost surely, 2^11738945 is an apocalyptic number.

It is an amenable number.

11738945 is a deficient number, since it is larger than the sum of its proper divisors (2347795).

11738945 is an equidigital number, since it uses as much as digits as its factorization.

11738945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2347794.

The product of its digits is 30240, while the sum is 38.

The square root of 11738945 is about 3426.2143832516. The cubic root of 11738945 is about 227.2704765595.

The spelling of 11738945 in words is "eleven million, seven hundred thirty-eight thousand, nine hundred forty-five".