6121261 has 2 divisors, whose sum is σ = 6121262. Its totient is φ = 6121260.

The previous prime is 6121253. The next prime is 6121319. The reversal of 6121261 is 1621216.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4076361 + 2044900 = 2019^2 + 1430^2 .

It is a cyclic number.

It is not a de Polignac number, because 6121261 - 2³ = 6121253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6121201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3060630 + 3060631.

It is an arithmetic number, because the mean of its divisors is an integer number (3060631).

Almost surely, 2^6121261 is an apocalyptic number.

It is an amenable number.

6121261 is a deficient number, since it is larger than the sum of its proper divisors (1).

6121261 is an equidigital number, since it uses as much as digits as its factorization.

6121261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 19.

The square root of 6121261 is about 2474.1182267628. The cubic root of 6121261 is about 182.9280475989.

Adding to 6121261 its reverse (1621216), we get a palindrome (7742477).

It can be divided in two parts, 61 and 21261, that multiplied together give a palindrome (1296921).

The spelling of 6121261 in words is "six million, one hundred twenty-one thousand, two hundred sixty-one".