1361415313 has 4 divisors (see below), whose sum is σ = 1405331968. Its totient is φ = 1317498660.

The previous prime is 1361415281. The next prime is 1361415331. The reversal of 1361415313 is 3135141631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1361415313 - 2⁵ = 1361415281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1361415343) 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, 21958281 + ... + 21958342.

It is an arithmetic number, because the mean of its divisors is an integer number (351332992).

Almost surely, 2^1361415313 is an apocalyptic number.

It is an amenable number.

1361415313 is a deficient number, since it is larger than the sum of its proper divisors (43916655).

1361415313 is an equidigital number, since it uses as much as digits as its factorization.

1361415313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43916654.

The product of its digits is 3240, while the sum is 28.

The square root of 1361415313 is about 36897.3618704644. The cubic root of 1361415313 is about 1108.3158490065.

Adding to 1361415313 its reverse (3135141631), we get a palindrome (4496556944).

The spelling of 1361415313 in words is "one billion, three hundred sixty-one million, four hundred fifteen thousand, three hundred thirteen".