1124869 has 2 divisors, whose sum is σ = 1124870. Its totient is φ = 1124868.

The previous prime is 1124867. The next prime is 1124951. The reversal of 1124869 is 9684211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 879844 + 245025 = 938^2 + 495^2 .

It is a cyclic number.

It is not a de Polignac number, because 1124869 - 2¹ = 1124867 is a prime.

It is a super-2 number, since 2×1124869² = 2530660534322, which contains 22 as substring.

Together with 1124867, it forms a pair of twin primes.

1124869 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1124869.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1124867) 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 as a sum of consecutive naturals, namely, 562434 + 562435.

It is an arithmetic number, because the mean of its divisors is an integer number (562435).

2^1124869 is an apocalyptic number.

It is an amenable number.

1124869 is a deficient number, since it is larger than the sum of its proper divisors (1).

1124869 is an equidigital number, since it uses as much as digits as its factorization.

1124869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 31.

The square root of 1124869 is about 1060.5984159898. The cubic root of 1124869 is about 104.0001540925. Note that the first 3 decimals are identical.

The spelling of 1124869 in words is "one million, one hundred twenty-four thousand, eight hundred sixty-nine".