11436121 has 8 divisors (see below), whose sum is σ = 12526920. Its totient is φ = 10391808.

The previous prime is 11436101. The next prime is 11436127. The reversal of 11436121 is 12163411.

It can be written as a sum of positive squares in 4 ways, for example, as 546121 + 10890000 = 739^2 + 3300^2 .

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 11436121 - 2¹³ = 11427929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11436127) 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, 11106 + ... + 12091.

It is an arithmetic number, because the mean of its divisors is an integer number (1565865).

Almost surely, 2^11436121 is an apocalyptic number.

It is an amenable number.

11436121 is a deficient number, since it is larger than the sum of its proper divisors (1090799).

11436121 is a wasteful number, since it uses less digits than its factorization.

11436121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23243.

The product of its digits is 144, while the sum is 19.

The square root of 11436121 is about 3381.7334312450. The cubic root of 11436121 is about 225.2991641893.

Adding to 11436121 its reverse (12163411), we get a palindrome (23599532).

The spelling of 11436121 in words is "eleven million, four hundred thirty-six thousand, one hundred twenty-one".