690175161 has 24 divisors (see below), whose sum is σ = 1113374080. Its totient is φ = 424721232.

The previous prime is 690175127. The next prime is 690175177. The reversal of 690175161 is 161571096.

It is a happy number.

690175161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 690175161 - 2⁷ = 690175033 is a prime.

It is a super-2 number, since 2×690175161² = 952683505722751842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (690175111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106081 + ... + 112398.

Almost surely, 2^690175161 is an apocalyptic number.

It is an amenable number.

690175161 is a deficient number, since it is larger than the sum of its proper divisors (423198919).

690175161 is a wasteful number, since it uses less digits than its factorization.

690175161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218507 (or 218495 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 690175161 is about 26271.1849942099. The cubic root of 690175161 is about 883.7303598257.

The spelling of 690175161 in words is "six hundred ninety million, one hundred seventy-five thousand, one hundred sixty-one".