1306335125 has 8 divisors (see below), whose sum is σ = 1630306392. Its totient is φ = 1045068000.

The previous prime is 1306335119. The next prime is 1306335143. The reversal of 1306335125 is 5215336031.

It can be written as a sum of positive squares in 4 ways, for example, as 1825201 + 1304509924 = 1351^2 + 36118^2 .

It is not a de Polignac number, because 1306335125 - 2¹⁸ = 1306072981 is a prime.

It is a super-2 number, since 2×1306335125² = 3413022917617531250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5225216 + ... + 5225465.

It is an arithmetic number, because the mean of its divisors is an integer number (203788299).

Almost surely, 2^1306335125 is an apocalyptic number.

It is an amenable number.

1306335125 is a deficient number, since it is larger than the sum of its proper divisors (323971267).

1306335125 is an equidigital number, since it uses as much as digits as its factorization.

1306335125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10450696 (or 10450686 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 1306335125 is about 36143.2583616917. The cubic root of 1306335125 is about 1093.1628598374.

The spelling of 1306335125 in words is "one billion, three hundred six million, three hundred thirty-five thousand, one hundred twenty-five".