1915130315105 has 24 divisors (see below), whose sum is σ = 2675733874920. Its totient is φ = 1312068844800.

The previous prime is 1915130315099. The next prime is 1915130315113. The reversal of 1915130315105 is 5015130315191.

It can be written as a sum of positive squares in 4 ways, for example, as 91517745361 + 1823612569744 = 302519^2 + 1350412^2 .

It is not a de Polignac number, because 1915130315105 - 2⁶ = 1915130315041 is a prime.

It is a super-2 number, since 2×1915130315105² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3185246 + ... + 3738455.

It is an arithmetic number, because the mean of its divisors is an integer number (111488911455).

Almost surely, 2^{1915130315105} is an apocalyptic number.

It is an amenable number.

1915130315105 is a deficient number, since it is larger than the sum of its proper divisors (760603559815).

1915130315105 is a wasteful number, since it uses less digits than its factorization.

1915130315105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6924849 (or 6924842 counting only the distinct ones).

The product of its (nonzero) digits is 10125, while the sum is 35.

The spelling of 1915130315105 in words is "one trillion, nine hundred fifteen billion, one hundred thirty million, three hundred fifteen thousand, one hundred five".