1351313105 has 4 divisors (see below), whose sum is σ = 1621575732. Its totient is φ = 1081050480.

The previous prime is 1351313101. The next prime is 1351313143. The reversal of 1351313105 is 5013131531.

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 893053456 + 458259649 = 29884^2 + 21407^2 .

It is not a de Polignac number, because 1351313105 - 2² = 1351313101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1351313101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135131306 + ... + 135131315.

It is an arithmetic number, because the mean of its divisors is an integer number (405393933).

Almost surely, 2^1351313105 is an apocalyptic number.

It is an amenable number.

1351313105 is a deficient number, since it is larger than the sum of its proper divisors (270262627).

1351313105 is an equidigital number, since it uses as much as digits as its factorization.

1351313105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270262626.

The product of its (nonzero) digits is 675, while the sum is 23.

The square root of 1351313105 is about 36760.2108943896. The cubic root of 1351313105 is about 1105.5676683025.

Adding to 1351313105 its reverse (5013131531), we get a palindrome (6364444636).

The spelling of 1351313105 in words is "one billion, three hundred fifty-one million, three hundred thirteen thousand, one hundred five".