11361645 has 12 divisors (see below), whose sum is σ = 19693596. Its totient is φ = 6059520.

The previous prime is 11361641. The next prime is 11361653. The reversal of 11361645 is 54616311.

11361645 is a `hidden beast` number, since 1 + 1 + 3 + 616 + 45 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6245001 + 5116644 = 2499^2 + 2262^2 .

It is not a de Polignac number, because 11361645 - 2² = 11361641 is a prime.

It is a super-3 number, since 3×11361645³ (a number of 22 digits) contains 333 as substring.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11361641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 126196 + ... + 126285.

It is an arithmetic number, because the mean of its divisors is an integer number (1641133).

Almost surely, 2^11361645 is an apocalyptic number.

11361645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11361645 is a deficient number, since it is larger than the sum of its proper divisors (8331951).

11361645 is a wasteful number, since it uses less digits than its factorization.

11361645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252492 (or 252489 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 11361645 is about 3370.7039324153. The cubic root of 11361645 is about 224.8090231325.

Adding to 11361645 its reverse (54616311), we get a palindrome (65977956).

The spelling of 11361645 in words is "eleven million, three hundred sixty-one thousand, six hundred forty-five".