2070161 has 4 divisors (see below), whose sum is σ = 2160192. Its totient is φ = 1980132.

The previous prime is 2070143. The next prime is 2070179. The reversal of 2070161 is 1610702.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (2070143) and next prime (2070179).

It is a cyclic number.

It is not a de Polignac number, because 2070161 - 2¹⁸ = 1808017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2070181) 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, 44981 + ... + 45026.

It is an arithmetic number, because the mean of its divisors is an integer number (540048).

2^2070161 is an apocalyptic number.

It is an amenable number.

2070161 is a deficient number, since it is larger than the sum of its proper divisors (90031).

2070161 is an equidigital number, since it uses as much as digits as its factorization.

2070161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90030.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 2070161 is about 1438.8054072737. The cubic root of 2070161 is about 127.4484938697.

Adding to 2070161 its reverse (1610702), we get a palindrome (3680863).

The spelling of 2070161 in words is "two million, seventy thousand, one hundred sixty-one".