1315224135 has 48 divisors (see below), whose sum is σ = 2440488960. Its totient is φ = 678805920.

The previous prime is 1315224133. The next prime is 1315224151. The reversal of 1315224135 is 5314225131.

1315224135 is a `hidden beast` number, since 1 + 3 + 1 + 522 + 4 + 135 = 666.

It is not a de Polignac number, because 1315224135 - 2¹ = 1315224133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1315224099 and 1315224108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315224133) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20206 + ... + 55124.

It is an arithmetic number, because the mean of its divisors is an integer number (50843520).

Almost surely, 2^1315224135 is an apocalyptic number.

1315224135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1315224135 is a deficient number, since it is larger than the sum of its proper divisors (1125264825).

1315224135 is an equidigital number, since it uses as much as digits as its factorization.

1315224135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34970 (or 34958 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 1315224135 is about 36266.0190122930. The cubic root of 1315224135 is about 1095.6367473150.

Adding to 1315224135 its reverse (5314225131), we get a palindrome (6629449266).

The spelling of 1315224135 in words is "one billion, three hundred fifteen million, two hundred twenty-four thousand, one hundred thirty-five".