1315064121 has 32 divisors (see below), whose sum is σ = 2150892288. Its totient is φ = 697559040.

The previous prime is 1315064111. The next prime is 1315064147. The reversal of 1315064121 is 1214605131.

It is a happy number.

It is not a de Polignac number, because 1315064121 - 2¹⁰ = 1315063097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1315064091 and 1315064100.

It is not an unprimeable number, because it can be changed into a prime (1315064111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 831 + ... + 51291.

It is an arithmetic number, because the mean of its divisors is an integer number (67215384).

Almost surely, 2^1315064121 is an apocalyptic number.

It is an amenable number.

1315064121 is a deficient number, since it is larger than the sum of its proper divisors (835828167).

1315064121 is a wasteful number, since it uses less digits than its factorization.

1315064121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50561.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 1315064121 is about 36263.8128304237. The cubic root of 1315064121 is about 1095.5923127267.

Adding to 1315064121 its reverse (1214605131), we get a palindrome (2529669252).

The spelling of 1315064121 in words is "one billion, three hundred fifteen million, sixty-four thousand, one hundred twenty-one".