913139 has 2 divisors, whose sum is σ = 913140. Its totient is φ = 913138.

The previous prime is 913103. The next prime is 913151. The reversal of 913139 is 931319.

It is a strong prime.

It is an emirp because it is prime and its reverse (931319) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 913139 - 2¹² = 909043 is a prime.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 913139.

It is not a weakly prime, because it can be changed into another prime (913039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 456569 + 456570.

It is an arithmetic number, because the mean of its divisors is an integer number (456570).

2⁹¹³¹³⁹ is an apocalyptic number.

913139 is a deficient number, since it is larger than the sum of its proper divisors (1).

913139 is an equidigital number, since it uses as much as digits as its factorization.

913139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 729, while the sum is 26.

The square root of 913139 is about 955.5830680794. The cubic root of 913139 is about 97.0165062072.

The spelling of 913139 in words is "nine hundred thirteen thousand, one hundred thirty-nine".