1315409109 has 16 divisors (see below), whose sum is σ = 2053322880. Its totient is φ = 733328640.

The previous prime is 1315409093. The next prime is 1315409113. The reversal of 1315409109 is 9019045131.

It is not a de Polignac number, because 1315409109 - 2⁴ = 1315409093 is a prime.

It is a super-2 number, since 2×1315409109² = 3460602248080347762, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1315409109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315409129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 763024 + ... + 764745.

It is an arithmetic number, because the mean of its divisors is an integer number (128332680).

Almost surely, 2^1315409109 is an apocalyptic number.

It is an amenable number.

1315409109 is a deficient number, since it is larger than the sum of its proper divisors (737913771).

1315409109 is a wasteful number, since it uses less digits than its factorization.

1315409109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1527820.

The product of its (nonzero) digits is 4860, while the sum is 33.

The square root of 1315409109 is about 36268.5691611897. The cubic root of 1315409109 is about 1095.6881086016.

The spelling of 1315409109 in words is "one billion, three hundred fifteen million, four hundred nine thousand, one hundred nine".