1204601261 has 2 divisors, whose sum is σ = 1204601262. Its totient is φ = 1204601260.

The previous prime is 1204601239. The next prime is 1204601291. The reversal of 1204601261 is 1621064021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1011558025 + 193043236 = 31805^2 + 13894^2 .

It is a cyclic number.

It is not a de Polignac number, because 1204601261 - 2¹⁴ = 1204584877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1204601291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602300630 + 602300631.

It is an arithmetic number, because the mean of its divisors is an integer number (602300631).

Almost surely, 2^1204601261 is an apocalyptic number.

It is an amenable number.

1204601261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1204601261 is an equidigital number, since it uses as much as digits as its factorization.

1204601261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1204601261 is about 34707.3660913645. The cubic root of 1204601261 is about 1064.0150506308.

Adding to 1204601261 its reverse (1621064021), we get a palindrome (2825665282).

The spelling of 1204601261 in words is "one billion, two hundred four million, six hundred one thousand, two hundred sixty-one".