100670161 has 4 divisors (see below), whose sum is σ = 102569652. Its totient is φ = 98770672.

The previous prime is 100670159. The next prime is 100670177. The reversal of 100670161 is 161076001.

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

It can be written as a sum of positive squares in 2 ways, for example, as 56911936 + 43758225 = 7544^2 + 6615^2 .

It is a cyclic number.

It is not a de Polignac number, because 100670161 - 2¹ = 100670159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100676161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 949666 + ... + 949771.

It is an arithmetic number, because the mean of its divisors is an integer number (25642413).

Almost surely, 2^100670161 is an apocalyptic number.

It is an amenable number.

100670161 is a deficient number, since it is larger than the sum of its proper divisors (1899491).

100670161 is an equidigital number, since it uses as much as digits as its factorization.

100670161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1899490.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 100670161 is about 10033.4520978574. The cubic root of 100670161 is about 465.1934463172.

The spelling of 100670161 in words is "one hundred million, six hundred seventy thousand, one hundred sixty-one".