11405245 has 8 divisors (see below), whose sum is σ = 13712184. Its totient is φ = 9106944.

The previous prime is 11405243. The next prime is 11405297. The reversal of 11405245 is 54250411.

It can be written as a sum of positive squares in 4 ways, for example, as 574564 + 10830681 = 758^2 + 3291^2 .

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 11405245 - 2¹ = 11405243 is a prime.

It is a super-2 number, since 2×11405245² = 260159227020050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11405243) 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, 1237 + ... + 4933.

It is an arithmetic number, because the mean of its divisors is an integer number (1714023).

Almost surely, 2^11405245 is an apocalyptic number.

It is an amenable number.

11405245 is a deficient number, since it is larger than the sum of its proper divisors (2306939).

11405245 is an equidigital number, since it uses as much as digits as its factorization.

11405245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4319.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 11405245 is about 3377.1652313738. The cubic root of 11405245 is about 225.0962222188.

Adding to 11405245 its reverse (54250411), we get a palindrome (65655656).

The spelling of 11405245 in words is "eleven million, four hundred five thousand, two hundred forty-five".