11265421 has 2 divisors, whose sum is σ = 11265422. Its totient is φ = 11265420.

The previous prime is 11265409. The next prime is 11265437. The reversal of 11265421 is 12456211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7209225 + 4056196 = 2685^2 + 2014^2 .

It is an emirp because it is prime and its reverse (12456211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11265421 - 2⁵ = 11265389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11265392 and 11265401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11265491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5632710 + 5632711.

It is an arithmetic number, because the mean of its divisors is an integer number (5632711).

Almost surely, 2^11265421 is an apocalyptic number.

It is an amenable number.

11265421 is a deficient number, since it is larger than the sum of its proper divisors (1).

11265421 is an equidigital number, since it uses as much as digits as its factorization.

11265421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 480, while the sum is 22.

The square root of 11265421 is about 3356.4000059588. The cubic root of 11265421 is about 224.1725724242.

The spelling of 11265421 in words is "eleven million, two hundred sixty-five thousand, four hundred twenty-one".