1085115913 has 8 divisors (see below), whose sum is σ = 1243589760. Its totient is φ = 927506400.

The previous prime is 1085115887. The next prime is 1085115923. The reversal of 1085115913 is 3195115801.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1085115913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1085115923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213388 + ... + 218413.

It is an arithmetic number, because the mean of its divisors is an integer number (155448720).

Almost surely, 2^1085115913 is an apocalyptic number.

It is an amenable number.

1085115913 is a deficient number, since it is larger than the sum of its proper divisors (158473847).

1085115913 is an equidigital number, since it uses as much as digits as its factorization.

1085115913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432167.

The product of its (nonzero) digits is 5400, while the sum is 34.

The square root of 1085115913 is about 32941.0976289498. The cubic root of 1085115913 is about 1027.6030330630.

The spelling of 1085115913 in words is "one billion, eighty-five million, one hundred fifteen thousand, nine hundred thirteen".