1124639 has 2 divisors, whose sum is σ = 1124640. Its totient is φ = 1124638.

The previous prime is 1124603. The next prime is 1124647. The reversal of 1124639 is 9364211.

It is a strong prime.

It is an emirp because it is prime and its reverse (9364211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1124639 - 2¹² = 1120543 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1124659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562319 + 562320.

It is an arithmetic number, because the mean of its divisors is an integer number (562320).

2^1124639 is an apocalyptic number.

1124639 is a deficient number, since it is larger than the sum of its proper divisors (1).

1124639 is an equidigital number, since it uses as much as digits as its factorization.

1124639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 26.

The square root of 1124639 is about 1060.4899810936. The cubic root of 1124639 is about 103.9930653660.

The spelling of 1124639 in words is "one million, one hundred twenty-four thousand, six hundred thirty-nine".