1241569 has 8 divisors (see below), whose sum is σ = 1427840. Its totient is φ = 1057536.

The previous prime is 1241557. The next prime is 1241573. The reversal of 1241569 is 9651421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1241569 - 2¹³ = 1233377 is a prime.

It is a super-4 number, since 4×1241569⁴ (a number of 25 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a plaindrome in base 11 and base 14.

It is not an unprimeable number, because it can be changed into a prime (1241509) 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 in 7 ways as a sum of consecutive naturals, for example, 892 + ... + 1810.

It is an arithmetic number, because the mean of its divisors is an integer number (178480).

2^1241569 is an apocalyptic number.

It is an amenable number.

1241569 is a deficient number, since it is larger than the sum of its proper divisors (186271).

1241569 is an equidigital number, since it uses as much as digits as its factorization.

1241569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119.

The product of its digits is 2160, while the sum is 28.

The square root of 1241569 is about 1114.2571516486. The cubic root of 1241569 is about 107.4790007657.

The spelling of 1241569 in words is "one million, two hundred forty-one thousand, five hundred sixty-nine".