3180121 has 4 divisors (see below), whose sum is σ = 3634432. Its totient is φ = 2725812.

The previous prime is 3180103. The next prime is 3180131. The reversal of 3180121 is 1210813.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1210813 = 19 ⋅63727.

It is a cyclic number.

It is not a de Polignac number, because 3180121 - 2⁷ = 3179993 is a prime.

It is a super-2 number, since 2×3180121² = 20226339149282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3180095 and 3180104.

It is not an unprimeable number, because it can be changed into a prime (3180101) 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, 227145 + ... + 227158.

It is an arithmetic number, because the mean of its divisors is an integer number (908608).

Almost surely, 2^3180121 is an apocalyptic number.

It is an amenable number.

3180121 is a deficient number, since it is larger than the sum of its proper divisors (454311).

3180121 is an equidigital number, since it uses as much as digits as its factorization.

3180121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454310.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 3180121 is about 1783.2893764053. The cubic root of 3180121 is about 147.0554806236.

Adding to 3180121 its reverse (1210813), we get a palindrome (4390934).

The spelling of 3180121 in words is "three million, one hundred eighty thousand, one hundred twenty-one".