1149917 has 2 divisors, whose sum is σ = 1149918. Its totient is φ = 1149916.

The previous prime is 1149913. The next prime is 1149919. The reversal of 1149917 is 7199411.

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., 1038361 + 111556 = 1019^2 + 334^2 .

It is an emirp because it is prime and its reverse (7199411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1149917 - 2² = 1149913 is a prime.

Together with 1149919, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1149913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 574958 + 574959.

It is an arithmetic number, because the mean of its divisors is an integer number (574959).

2^1149917 is an apocalyptic number.

It is an amenable number.

1149917 is a deficient number, since it is larger than the sum of its proper divisors (1).

1149917 is an equidigital number, since it uses as much as digits as its factorization.

1149917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268, while the sum is 32.

The square root of 1149917 is about 1072.3418298285. The cubic root of 1149917 is about 104.7664347280.

The spelling of 1149917 in words is "one million, one hundred forty-nine thousand, nine hundred seventeen".