11481961 has 2 divisors, whose sum is σ = 11481962. Its totient is φ = 11481960.

The previous prime is 11481929. The next prime is 11482001. The reversal of 11481961 is 16918411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8037225 + 3444736 = 2835^2 + 1856^2 .

It is a cyclic number.

It is not a de Polignac number, because 11481961 - 2⁵ = 11481929 is a prime.

It is not a weakly prime, because it can be changed into another prime (11481901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5740980 + 5740981.

It is an arithmetic number, because the mean of its divisors is an integer number (5740981).

Almost surely, 2^11481961 is an apocalyptic number.

It is an amenable number.

11481961 is a deficient number, since it is larger than the sum of its proper divisors (1).

11481961 is an equidigital number, since it uses as much as digits as its factorization.

11481961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 31.

The square root of 11481961 is about 3388.5042422874. The cubic root of 11481961 is about 225.5997890048.

The spelling of 11481961 in words is "eleven million, four hundred eighty-one thousand, nine hundred sixty-one".