11949001 has 2 divisors, whose sum is σ = 11949002. Its totient is φ = 11949000.

The previous prime is 11948971. The next prime is 11949013. The reversal of 11949001 is 10094911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10791225 + 1157776 = 3285^2 + 1076^2 .

It is an emirp because it is prime and its reverse (10094911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11949001 - 2²³ = 3560393 is a prime.

It is not a weakly prime, because it can be changed into another prime (11949071) 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, 5974500 + 5974501.

It is an arithmetic number, because the mean of its divisors is an integer number (5974501).

Almost surely, 2^11949001 is an apocalyptic number.

It is an amenable number.

11949001 is a deficient number, since it is larger than the sum of its proper divisors (1).

11949001 is an equidigital number, since it uses as much as digits as its factorization.

11949001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 11949001 is about 3456.7327058944. The cubic root of 11949001 is about 228.6180586227.

The spelling of 11949001 in words is "eleven million, nine hundred forty-nine thousand, one".