611252849 has 2 divisors, whose sum is σ = 611252850. Its totient is φ = 611252848.

The previous prime is 611252843. The next prime is 611252881. The reversal of 611252849 is 948252116.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 394221025 + 217031824 = 19855^2 + 14732^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-611252849 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (611252843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305626424 + 305626425.

It is an arithmetic number, because the mean of its divisors is an integer number (305626425).

Almost surely, 2^611252849 is an apocalyptic number.

It is an amenable number.

611252849 is a deficient number, since it is larger than the sum of its proper divisors (1).

611252849 is an equidigital number, since it uses as much as digits as its factorization.

611252849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 38.

The square root of 611252849 is about 24723.5282474003. The cubic root of 611252849 is about 848.6728303671.

The spelling of 611252849 in words is "six hundred eleven million, two hundred fifty-two thousand, eight hundred forty-nine".