11601949 has 2 divisors, whose sum is σ = 11601950. Its totient is φ = 11601948.

The previous prime is 11601923. The next prime is 11601977. The reversal of 11601949 is 94910611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11437924 + 164025 = 3382^2 + 405^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11601949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11601949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11601049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5800974 + 5800975.

It is an arithmetic number, because the mean of its divisors is an integer number (5800975).

Almost surely, 2^11601949 is an apocalyptic number.

It is an amenable number.

11601949 is a deficient number, since it is larger than the sum of its proper divisors (1).

11601949 is an equidigital number, since it uses as much as digits as its factorization.

11601949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 11601949 is about 3406.1633842198. The cubic root of 11601949 is about 226.3829165170.

The spelling of 11601949 in words is "eleven million, six hundred one thousand, nine hundred forty-nine".