6601261 has 2 divisors, whose sum is σ = 6601262. Its totient is φ = 6601260.

The previous prime is 6601247. The next prime is 6601277. The reversal of 6601261 is 1621066.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5175625 + 1425636 = 2275^2 + 1194^2 .

It is a cyclic number.

It is not a de Polignac number, because 6601261 - 2¹⁵ = 6568493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6601201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3300630 + 3300631.

It is an arithmetic number, because the mean of its divisors is an integer number (3300631).

Almost surely, 2^6601261 is an apocalyptic number.

It is an amenable number.

6601261 is a deficient number, since it is larger than the sum of its proper divisors (1).

6601261 is an equidigital number, since it uses as much as digits as its factorization.

6601261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 6601261 is about 2569.2919258037. The cubic root of 6601261 is about 187.5896910152.

The spelling of 6601261 in words is "six million, six hundred one thousand, two hundred sixty-one".