4123261 has 2 divisors, whose sum is σ = 4123262. Its totient is φ = 4123260.

The previous prime is 4123253. The next prime is 4123283. The reversal of 4123261 is 1623214.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4024036 + 99225 = 2006^2 + 315^2 .

It is a cyclic number.

It is not a de Polignac number, because 4123261 - 2³ = 4123253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4123201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2061630 + 2061631.

It is an arithmetic number, because the mean of its divisors is an integer number (2061631).

Almost surely, 2^4123261 is an apocalyptic number.

It is an amenable number.

4123261 is a deficient number, since it is larger than the sum of its proper divisors (1).

4123261 is an equidigital number, since it uses as much as digits as its factorization.

4123261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 19.

The square root of 4123261 is about 2030.5814438234. The cubic root of 4123261 is about 160.3541763534.

Adding to 4123261 its reverse (1623214), we get a palindrome (5746475).

It can be divided in two parts, 41232 and 61, that multiplied together give a palindrome (2515152).

The spelling of 4123261 in words is "four million, one hundred twenty-three thousand, two hundred sixty-one".