1690117115 has 4 divisors (see below), whose sum is σ = 2028140544. Its totient is φ = 1352093688.

The previous prime is 1690117111. The next prime is 1690117123. The reversal of 1690117115 is 5117110961.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1690117115 - 2² = 1690117111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1690117111) by changing a digit.

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, 169011707 + ... + 169011716.

It is an arithmetic number, because the mean of its divisors is an integer number (507035136).

Almost surely, 2^1690117115 is an apocalyptic number.

1690117115 is a deficient number, since it is larger than the sum of its proper divisors (338023429).

1690117115 is an equidigital number, since it uses as much as digits as its factorization.

1690117115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338023428.

The product of its (nonzero) digits is 1890, while the sum is 32.

The square root of 1690117115 is about 41111.0339811589. The cubic root of 1690117115 is about 1191.1659393886.

The spelling of 1690117115 in words is "one billion, six hundred ninety million, one hundred seventeen thousand, one hundred fifteen".