11133961 has 2 divisors, whose sum is σ = 11133962. Its totient is φ = 11133960.

The previous prime is 11133931. The next prime is 11134009. The reversal of 11133961 is 16933111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9120400 + 2013561 = 3020^2 + 1419^2 .

It is a cyclic number.

It is not a de Polignac number, because 11133961 - 2⁷ = 11133833 is a prime.

It is not a weakly prime, because it can be changed into another prime (11133911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5566980 + 5566981.

It is an arithmetic number, because the mean of its divisors is an integer number (5566981).

Almost surely, 2^11133961 is an apocalyptic number.

It is an amenable number.

11133961 is a deficient number, since it is larger than the sum of its proper divisors (1).

11133961 is an equidigital number, since it uses as much as digits as its factorization.

11133961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 486, while the sum is 25.

The square root of 11133961 is about 3336.7590563300. The cubic root of 11133961 is about 223.2971766422.

The spelling of 11133961 in words is "eleven million, one hundred thirty-three thousand, nine hundred sixty-one".