4051121 has 2 divisors, whose sum is σ = 4051122. Its totient is φ = 4051120.

The previous prime is 4051081. The next prime is 4051133. The reversal of 4051121 is 1211504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2927521 + 1123600 = 1711^2 + 1060^2 .

It is a cyclic number.

It is not a de Polignac number, because 4051121 - 2⁶ = 4051057 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 4051096 and 4051105.

It is not a weakly prime, because it can be changed into another prime (4051181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2025560 + 2025561.

It is an arithmetic number, because the mean of its divisors is an integer number (2025561).

Almost surely, 2^4051121 is an apocalyptic number.

It is an amenable number.

4051121 is a deficient number, since it is larger than the sum of its proper divisors (1).

4051121 is an equidigital number, since it uses as much as digits as its factorization.

4051121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 4051121 is about 2012.7396751691. The cubic root of 4051121 is about 159.4134906905.

Adding to 4051121 its reverse (1211504), we get a palindrome (5262625).

The spelling of 4051121 in words is "four million, fifty-one thousand, one hundred twenty-one".