1137439 has 2 divisors, whose sum is σ = 1137440. Its totient is φ = 1137438.

The previous prime is 1137427. The next prime is 1137457. The reversal of 1137439 is 9347311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1137439 - 2⁵ = 1137407 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 (1137139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 568719 + 568720.

It is an arithmetic number, because the mean of its divisors is an integer number (568720).

2^1137439 is an apocalyptic number.

1137439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1137439 is an equidigital number, since it uses as much as digits as its factorization.

1137439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268, while the sum is 28.

The square root of 1137439 is about 1066.5078527606. The cubic root of 1137439 is about 104.3861079170.

The spelling of 1137439 in words is "one million, one hundred thirty-seven thousand, four hundred thirty-nine".