11562401 has 2 divisors, whose sum is σ = 11562402. Its totient is φ = 11562400.

The previous prime is 11562377. The next prime is 11562403. The reversal of 11562401 is 10426511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11560000 + 2401 = 3400^2 + 49^2 .

It is a cyclic number.

It is not a de Polignac number, because 11562401 - 2⁶ = 11562337 is a prime.

Together with 11562403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11562403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5781200 + 5781201.

It is an arithmetic number, because the mean of its divisors is an integer number (5781201).

Almost surely, 2^11562401 is an apocalyptic number.

It is an amenable number.

11562401 is a deficient number, since it is larger than the sum of its proper divisors (1).

11562401 is an equidigital number, since it uses as much as digits as its factorization.

11562401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 11562401 is about 3400.3530699032. The cubic root of 11562401 is about 226.1253970350.

Adding to 11562401 its reverse (10426511), we get a palindrome (21988912).

It can be divided in two parts, 1156 and 2401, that multiplied together give a square (2775556 = 1666²).

The spelling of 11562401 in words is "eleven million, five hundred sixty-two thousand, four hundred one".