11618953 has 2 divisors, whose sum is σ = 11618954. Its totient is φ = 11618952.

The previous prime is 11618947. The next prime is 11618983. The reversal of 11618953 is 35981611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11614464 + 4489 = 3408^2 + 67^2 .

It is a cyclic number.

It is not a de Polignac number, because 11618953 - 2⁹ = 11618441 is a prime.

It is not a weakly prime, because it can be changed into another prime (11618903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5809476 + 5809477.

It is an arithmetic number, because the mean of its divisors is an integer number (5809477).

Almost surely, 2^11618953 is an apocalyptic number.

It is an amenable number.

11618953 is a deficient number, since it is larger than the sum of its proper divisors (1).

11618953 is an equidigital number, since it uses as much as digits as its factorization.

11618953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 34.

The square root of 11618953 is about 3408.6585337930. The cubic root of 11618953 is about 226.4934593248.

The spelling of 11618953 in words is "eleven million, six hundred eighteen thousand, nine hundred fifty-three".