604640141221 has 2 divisors, whose sum is σ = 604640141222. Its totient is φ = 604640141220.

The previous prime is 604640141201. The next prime is 604640141249. The reversal of 604640141221 is 122141046406.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 519048202500 + 85591938721 = 720450^2 + 292561^2 .

It is a cyclic number.

It is not a de Polignac number, because 604640141221 - 2²⁷ = 604505923493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (604640141201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302320070610 + 302320070611.

It is an arithmetic number, because the mean of its divisors is an integer number (302320070611).

Almost surely, 2^604640141221 is an apocalyptic number.

It is an amenable number.

604640141221 is a deficient number, since it is larger than the sum of its proper divisors (1).

604640141221 is an equidigital number, since it uses as much as digits as its factorization.

604640141221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 31.

Adding to 604640141221 its reverse (122141046406), we get a palindrome (726781187627).

The spelling of 604640141221 in words is "six hundred four billion, six hundred forty million, one hundred forty-one thousand, two hundred twenty-one".