1302740105 has 4 divisors (see below), whose sum is σ = 1563288132. Its totient is φ = 1042192080.

The previous prime is 1302740093. The next prime is 1302740137. The reversal of 1302740105 is 5010472031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 303421561 + 999318544 = 17419^2 + 31612^2 .

It is not a de Polignac number, because 1302740105 - 2⁶ = 1302740041 is a prime.

It is a super-2 number, since 2×1302740105² = 3394263562350822050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130274006 + ... + 130274015.

It is an arithmetic number, because the mean of its divisors is an integer number (390822033).

Almost surely, 2^1302740105 is an apocalyptic number.

It is an amenable number.

1302740105 is a deficient number, since it is larger than the sum of its proper divisors (260548027).

1302740105 is an equidigital number, since it uses as much as digits as its factorization.

1302740105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260548026.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 1302740105 is about 36093.4911722321. The cubic root of 1302740105 is about 1092.1591477874.

The spelling of 1302740105 in words is "one billion, three hundred two million, seven hundred forty thousand, one hundred five".