11745645 has 8 divisors (see below), whose sum is σ = 18793056. Its totient is φ = 6264336.

The previous prime is 11745619. The next prime is 11745647. The reversal of 11745645 is 54654711.

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

It is not a de Polignac number, because 11745645 - 2⁶ = 11745581 is a prime.

It is a super-3 number, since 3×11745645³ (a number of 22 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11745647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 391507 + ... + 391536.

It is an arithmetic number, because the mean of its divisors is an integer number (2349132).

Almost surely, 2^11745645 is an apocalyptic number.

11745645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11745645 is a deficient number, since it is larger than the sum of its proper divisors (7047411).

11745645 is an equidigital number, since it uses as much as digits as its factorization.

11745645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783051.

The product of its digits is 16800, while the sum is 33.

The square root of 11745645 is about 3427.1919992904. The cubic root of 11745645 is about 227.3137065258.

It can be divided in two parts, 1 and 1745645, that added together give a triangular number (1745646 = T₁₈₆₈).

The spelling of 11745645 in words is "eleven million, seven hundred forty-five thousand, six hundred forty-five".