1149217 has 4 divisors (see below), whose sum is σ = 1216836. Its totient is φ = 1081600.

The previous prime is 1149209. The next prime is 1149221. The reversal of 1149217 is 7129411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7129411 = 31 ⋅229981.

It can be written as a sum of positive squares in 2 ways, for example, as 1079521 + 69696 = 1039^2 + 264^2 .

It is a cyclic number.

It is not a de Polignac number, because 1149217 - 2³ = 1149209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1149191 and 1149200.

It is not an unprimeable number, because it can be changed into a prime (1149227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33784 + ... + 33817.

It is an arithmetic number, because the mean of its divisors is an integer number (304209).

2^1149217 is an apocalyptic number.

1149217 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1149217 is a deficient number, since it is larger than the sum of its proper divisors (67619).

1149217 is an equidigital number, since it uses as much as digits as its factorization.

1149217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67618.

The product of its digits is 504, while the sum is 25.

The square root of 1149217 is about 1072.0153916805. The cubic root of 1149217 is about 104.7451719209.

It can be divided in two parts, 11492 and 17, that multiplied together give a square (195364 = 442²).

The spelling of 1149217 in words is "one million, one hundred forty-nine thousand, two hundred seventeen".