1315945045 has 4 divisors (see below), whose sum is σ = 1579134060. Its totient is φ = 1052756032.

The previous prime is 1315945021. The next prime is 1315945063. The reversal of 1315945045 is 5405495131.

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 181737361 + 1134207684 = 13481^2 + 33678^2 .

It is a cyclic number.

It is not a de Polignac number, because 1315945045 - 2¹¹ = 1315942997 is a prime.

It is a super-2 number, since 2×1315945045² = 3463422722920104050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1315944995 and 1315945013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131594500 + ... + 131594509.

It is an arithmetic number, because the mean of its divisors is an integer number (394783515).

Almost surely, 2^1315945045 is an apocalyptic number.

It is an amenable number.

1315945045 is a deficient number, since it is larger than the sum of its proper divisors (263189015).

1315945045 is an equidigital number, since it uses as much as digits as its factorization.

1315945045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263189014.

The product of its (nonzero) digits is 54000, while the sum is 37.

The square root of 1315945045 is about 36275.9568447202. The cubic root of 1315945045 is about 1095.8368934844.

The spelling of 1315945045 in words is "one billion, three hundred fifteen million, nine hundred forty-five thousand, forty-five".