3402161 has 4 divisors (see below), whose sum is σ = 3888192.
Its totient is φ = 2916132.
The previous prime is 3402151. The next prime is 3402169. The reversal of 3402161 is 1612043.
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: 1612043 = 97 ⋅16619.
It is a cyclic number.
It is not a de Polignac number, because 3402161 - 26 = 3402097 is a prime.
It is an Ulam number.
It is not an unprimeable number, because it can be changed into a prime (3402169) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243005 + ... + 243018.
It is an arithmetic number, because the mean of its divisors is an integer number (972048).
Almost surely, 23402161 is an apocalyptic number.
It is an amenable number.
3402161 is a deficient number, since it is larger than the sum of its proper divisors (486031).
3402161 is an equidigital number, since it uses as much as digits as its factorization.
3402161 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 486030.
The product of its (nonzero) digits is 144, while the sum is 17.
The square root of 3402161 is about 1844.4947817763.
The cubic root of 3402161 is about 150.4013105599.
The spelling of 3402161 in words is "three million, four hundred two thousand, one hundred sixty-one".