1139959 has 2 divisors, whose sum is σ = 1139960. Its totient is φ = 1139958.

The previous prime is 1139951. The next prime is 1139989. The reversal of 1139959 is 9599311.

It is a weak prime.

It is an emirp because it is prime and its reverse (9599311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1139959 - 2³ = 1139951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1139951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 569979 + 569980.

It is an arithmetic number, because the mean of its divisors is an integer number (569980).

2^1139959 is an apocalyptic number.

1139959 is a deficient number, since it is larger than the sum of its proper divisors (1).

1139959 is an equidigital number, since it uses as much as digits as its factorization.

1139959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10935, while the sum is 37.

The square root of 1139959 is about 1067.6886250214. The cubic root of 1139959 is about 104.4631403163.

The spelling of 1139959 in words is "one million, one hundred thirty-nine thousand, nine hundred fifty-nine".