1315225841 has 4 divisors (see below), whose sum is σ = 1315542384. Its totient is φ = 1314909300.

The previous prime is 1315225837. The next prime is 1315225867. The reversal of 1315225841 is 1485225131.

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 1315225841 - 2² = 1315225837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1315225798 and 1315225807.

It is not an unprimeable number, because it can be changed into a prime (1315225811) 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, 151955 + ... + 160376.

It is an arithmetic number, because the mean of its divisors is an integer number (328885596).

Almost surely, 2^1315225841 is an apocalyptic number.

It is an amenable number.

1315225841 is a deficient number, since it is larger than the sum of its proper divisors (316543).

1315225841 is an equidigital number, since it uses as much as digits as its factorization.

1315225841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316542.

The product of its digits is 9600, while the sum is 32.

The square root of 1315225841 is about 36266.0425329260. The cubic root of 1315225841 is about 1095.6372210379.

The spelling of 1315225841 in words is "one billion, three hundred fifteen million, two hundred twenty-five thousand, eight hundred forty-one".