1241909 has 4 divisors (see below), whose sum is σ = 1244160. Its totient is φ = 1239660.

The previous prime is 1241893. The next prime is 1241921. The reversal of 1241909 is 9091421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9091421 = 1453 ⋅6257.

It is a cyclic number.

It is not a de Polignac number, because 1241909 - 2⁴ = 1241893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332 + ... + 1610.

It is an arithmetic number, because the mean of its divisors is an integer number (311040).

2^1241909 is an apocalyptic number.

It is an amenable number.

1241909 is a deficient number, since it is larger than the sum of its proper divisors (2251).

1241909 is an equidigital number, since it uses as much as digits as its factorization.

1241909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2250.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 1241909 is about 1114.4097092183. The cubic root of 1241909 is about 107.4888108058.

The spelling of 1241909 in words is "one million, two hundred forty-one thousand, nine hundred nine".