1690091075 has 24 divisors (see below), whose sum is σ = 2122739136. Its totient is φ = 1334720000.

The previous prime is 1690091041. The next prime is 1690091089. The reversal of 1690091075 is 5701900961.

It is not a de Polignac number, because 1690091075 - 2²⁰ = 1689042499 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1087499 + ... + 1089051.

It is an arithmetic number, because the mean of its divisors is an integer number (88447464).

Almost surely, 2^1690091075 is an apocalyptic number.

1690091075 is a deficient number, since it is larger than the sum of its proper divisors (432648061).

1690091075 is a wasteful number, since it uses less digits than its factorization.

1690091075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2095 (or 2090 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 38.

The square root of 1690091075 is about 41110.7172766421. The cubic root of 1690091075 is about 1191.1598218401.

The spelling of 1690091075 in words is "one billion, six hundred ninety million, ninety-one thousand, seventy-five".