1113961 has 2 divisors, whose sum is σ = 1113962. Its totient is φ = 1113960.

The previous prime is 1113953. The next prime is 1113971. The reversal of 1113961 is 1693111.

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., 1089936 + 24025 = 1044^2 + 155^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113961 - 2³ = 1113953 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1113941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556980 + 556981.

It is an arithmetic number, because the mean of its divisors is an integer number (556981).

2^1113961 is an apocalyptic number.

It is an amenable number.

1113961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113961 is an equidigital number, since it uses as much as digits as its factorization.

1113961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 162, while the sum is 22.

The square root of 1113961 is about 1055.4435086730. The cubic root of 1113961 is about 103.6628939372.

The spelling of 1113961 in words is "one million, one hundred thirteen thousand, nine hundred sixty-one".