1234102005 has 24 divisors (see below), whose sum is σ = 2140040760. Its totient is φ = 657901440.

The previous prime is 1234101977. The next prime is 1234102013. The reversal of 1234102005 is 5002014321.

It can be written as a sum of positive squares in 4 ways, for example, as 55621764 + 1178480241 = 7458^2 + 34329^2 .

It is not a de Polignac number, because 1234102005 - 2¹⁰ = 1234100981 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 135495 + ... + 144315.

It is an arithmetic number, because the mean of its divisors is an integer number (89168365).

Almost surely, 2^1234102005 is an apocalyptic number.

1234102005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1234102005 is a deficient number, since it is larger than the sum of its proper divisors (905938755).

1234102005 is a wasteful number, since it uses less digits than its factorization.

1234102005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11941 (or 11938 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1234102005 is about 35129.7880010683. The cubic root of 1234102005 is about 1072.6310205559.

Adding to 1234102005 its reverse (5002014321), we get a palindrome (6236116326).

The spelling of 1234102005 in words is "one billion, two hundred thirty-four million, one hundred two thousand, five".