3430121 has 4 divisors (see below), whose sum is σ = 3461700. Its totient is φ = 3398544.

The previous prime is 3430117. The next prime is 3430123. The reversal of 3430121 is 1210343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1210343 = 113 ⋅10711.

It can be written as a sum of positive squares in 2 ways, for example, as 2016400 + 1413721 = 1420^2 + 1189^2 .

It is a cyclic number.

It is not a de Polignac number, because 3430121 - 2² = 3430117 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3430096 and 3430105.

It is not an unprimeable number, because it can be changed into a prime (3430123) 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, 15626 + ... + 15843.

It is an arithmetic number, because the mean of its divisors is an integer number (865425).

Almost surely, 2^3430121 is an apocalyptic number.

It is an amenable number.

3430121 is a deficient number, since it is larger than the sum of its proper divisors (31579).

3430121 is a wasteful number, since it uses less digits than its factorization.

3430121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31578.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 3430121 is about 1852.0585843866. The cubic root of 3430121 is about 150.8122016596.

Adding to 3430121 its reverse (1210343), we get a palindrome (4640464).

The spelling of 3430121 in words is "three million, four hundred thirty thousand, one hundred twenty-one".