612000613261 has 2 divisors, whose sum is σ = 612000613262. Its totient is φ = 612000613260.

The previous prime is 612000613223. The next prime is 612000613283. The reversal of 612000613261 is 162316000216.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 559040336100 + 52960277161 = 747690^2 + 230131^2 .

It is a cyclic number.

It is not a de Polignac number, because 612000613261 - 2²¹ = 611998516109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (612000613201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306000306630 + 306000306631.

It is an arithmetic number, because the mean of its divisors is an integer number (306000306631).

Almost surely, 2^612000613261 is an apocalyptic number.

It is an amenable number.

612000613261 is a deficient number, since it is larger than the sum of its proper divisors (1).

612000613261 is an equidigital number, since it uses as much as digits as its factorization.

612000613261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

Adding to 612000613261 its reverse (162316000216), we get a palindrome (774316613477).

The spelling of 612000613261 in words is "six hundred twelve billion, six hundred thirteen thousand, two hundred sixty-one".