11945530 has 8 divisors (see below), whose sum is σ = 21501972. Its totient is φ = 4778208.

The previous prime is 11945519. The next prime is 11945581. The reversal of 11945530 is 3554911.

11945530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11758041 + 187489 = 3429^2 + 433^2 .

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

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, 597267 + ... + 597286.

Almost surely, 2^11945530 is an apocalyptic number.

11945530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11945530 is a deficient number, since it is larger than the sum of its proper divisors (9556442).

11945530 is a wasteful number, since it uses less digits than its factorization.

11945530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194560.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 11945530 is about 3456.2306057322. The cubic root of 11945530 is about 228.5959198087.

It can be divided in two parts, 1194 and 5530, that added together give a square (6724 = 82²).

The spelling of 11945530 in words is "eleven million, nine hundred forty-five thousand, five hundred thirty".