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999393139 is a prime number
BaseRepresentation
bin111011100100011…
…000011101110011
32120122112102122201
4323210120131303
54021321040024
6243100244031
733523462423
oct7344303563
92518472581
10999393139
11473149948
1223a840617
1312c086bb4
1496a30483
155cb11744
hex3b918773

999393139 has 2 divisors, whose sum is σ = 999393140. Its totient is φ = 999393138.

The previous prime is 999393119. The next prime is 999393149. The reversal of 999393139 is 931393999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 999393139 - 215 = 999360371 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 999393139.

It is not a weakly prime, because it can be changed into another prime (999393119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499696569 + 499696570.

It is an arithmetic number, because the mean of its divisors is an integer number (499696570).

Almost surely, 2999393139 is an apocalyptic number.

999393139 is a deficient number, since it is larger than the sum of its proper divisors (1).

999393139 is an equidigital number, since it uses as much as digits as its factorization.

999393139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1594323, while the sum is 55.

The square root of 999393139 is about 31613.1798305707. The cubic root of 999393139 is about 999.7976720662.

The spelling of 999393139 in words is "nine hundred ninety-nine million, three hundred ninety-three thousand, one hundred thirty-nine".