612249311 has 2 divisors, whose sum is σ = 612249312. Its totient is φ = 612249310.

The previous prime is 612249223. The next prime is 612249317. The reversal of 612249311 is 113942216.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 612249311 - 2²⁶ = 545140447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (612249317) 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, 306124655 + 306124656.

It is an arithmetic number, because the mean of its divisors is an integer number (306124656).

Almost surely, 2^612249311 is an apocalyptic number.

612249311 is a deficient number, since it is larger than the sum of its proper divisors (1).

612249311 is an equidigital number, since it uses as much as digits as its factorization.

612249311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 29.

The square root of 612249311 is about 24743.6721405696. The cubic root of 612249311 is about 849.1337477037.

The spelling of 612249311 in words is "six hundred twelve million, two hundred forty-nine thousand, three hundred eleven".