4121281 has 4 divisors (see below), whose sum is σ = 4134064. Its totient is φ = 4108500.

The previous prime is 4121269. The next prime is 4121291. The reversal of 4121281 is 1821214.

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 a cyclic number.

It is not a de Polignac number, because 4121281 - 2⁷ = 4121153 is a prime.

It is a super-2 number, since 2×4121281² = 33969914161922, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4121231) 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, 5895 + ... + 6556.

It is an arithmetic number, because the mean of its divisors is an integer number (1033516).

Almost surely, 2^4121281 is an apocalyptic number.

It is an amenable number.

4121281 is a deficient number, since it is larger than the sum of its proper divisors (12783).

4121281 is a wasteful number, since it uses less digits than its factorization.

4121281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12782.

The product of its digits is 128, while the sum is 19.

The square root of 4121281 is about 2030.0938401956. The cubic root of 4121281 is about 160.3285047548.

Adding to 4121281 its reverse (1821214), we get a palindrome (5942495).

The spelling of 4121281 in words is "four million, one hundred twenty-one thousand, two hundred eighty-one".