11203949 has 2 divisors, whose sum is σ = 11203950. Its totient is φ = 11203948.

The previous prime is 11203919. The next prime is 11203961. The reversal of 11203949 is 94930211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9954025 + 1249924 = 3155^2 + 1118^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11203949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11203909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5601974 + 5601975.

It is an arithmetic number, because the mean of its divisors is an integer number (5601975).

Almost surely, 2^11203949 is an apocalyptic number.

It is an amenable number.

11203949 is a deficient number, since it is larger than the sum of its proper divisors (1).

11203949 is an equidigital number, since it uses as much as digits as its factorization.

11203949 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 29.

The square root of 11203949 is about 3347.2300488613. The cubic root of 11203949 is about 223.7640811753.

The spelling of 11203949 in words is "eleven million, two hundred three thousand, nine hundred forty-nine".