1239094005 has 32 divisors (see below), whose sum is σ = 2051941248. Its totient is φ = 638054400.

The previous prime is 1239093979. The next prime is 1239094009. The reversal of 1239094005 is 5004909321.

It is not a de Polignac number, because 1239094005 - 2¹⁴ = 1239077621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1239094009) 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 in 31 ways as a sum of consecutive naturals, for example, 49270 + ... + 70040.

It is an arithmetic number, because the mean of its divisors is an integer number (64123164).

Almost surely, 2^1239094005 is an apocalyptic number.

1239094005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1239094005 is a deficient number, since it is larger than the sum of its proper divisors (812847243).

1239094005 is a wasteful number, since it uses less digits than its factorization.

1239094005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20917.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 1239094005 is about 35200.7671081185. The cubic root of 1239094005 is about 1074.0753556218.

The spelling of 1239094005 in words is "one billion, two hundred thirty-nine million, ninety-four thousand, five".