11521453 has 2 divisors, whose sum is σ = 11521454. Its totient is φ = 11521452.

The previous prime is 11521421. The next prime is 11521457. The reversal of 11521453 is 35412511.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11269449 + 252004 = 3357^2 + 502^2 .

It is a cyclic number.

It is not a de Polignac number, because 11521453 - 2⁵ = 11521421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11521457) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5760726 + 5760727.

It is an arithmetic number, because the mean of its divisors is an integer number (5760727).

Almost surely, 2^11521453 is an apocalyptic number.

It is an amenable number.

11521453 is a deficient number, since it is larger than the sum of its proper divisors (1).

11521453 is an equidigital number, since it uses as much as digits as its factorization.

11521453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 600, while the sum is 22.

The square root of 11521453 is about 3394.3265900617. The cubic root of 11521453 is about 225.8581418472.

Adding to 11521453 its reverse (35412511), we get a palindrome (46933964).

The spelling of 11521453 in words is "eleven million, five hundred twenty-one thousand, four hundred fifty-three".