11011945 has 8 divisors (see below), whose sum is σ = 15102144. Its totient is φ = 7551024.

The previous prime is 11011939. The next prime is 11011981. The reversal of 11011945 is 54911011.

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

It is a cyclic number.

It is not a de Polignac number, because 11011945 - 2⁷ = 11011817 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157279 + ... + 157348.

It is an arithmetic number, because the mean of its divisors is an integer number (1887768).

Almost surely, 2^11011945 is an apocalyptic number.

It is an amenable number.

11011945 is a deficient number, since it is larger than the sum of its proper divisors (4090199).

11011945 is an equidigital number, since it uses as much as digits as its factorization.

11011945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314639.

The product of its (nonzero) digits is 180, while the sum is 22.

The square root of 11011945 is about 3318.4250782563. The cubic root of 11011945 is about 222.4784812754.

Adding to 11011945 its reverse (54911011), we get a palindrome (65922956).

The spelling of 11011945 in words is "eleven million, eleven thousand, nine hundred forty-five".