1149901 has 2 divisors, whose sum is σ = 1149902. Its totient is φ = 1149900.

The previous prime is 1149887. The next prime is 1149913. The reversal of 1149901 is 1099411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1010025 + 139876 = 1005^2 + 374^2 .

It is an emirp because it is prime and its reverse (1099411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1149901 - 2⁷ = 1149773 is a prime.

1149901 is a lucky number.

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 (1149971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 574950 + 574951.

It is an arithmetic number, because the mean of its divisors is an integer number (574951).

2^1149901 is an apocalyptic number.

It is an amenable number.

1149901 is a deficient number, since it is larger than the sum of its proper divisors (1).

1149901 is an equidigital number, since it uses as much as digits as its factorization.

1149901 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 1149901 is about 1072.3343694949. The cubic root of 1149901 is about 104.7659488174.

The spelling of 1149901 in words is "one million, one hundred forty-nine thousand, nine hundred one".