612215077 has 2 divisors, whose sum is σ = 612215078. Its totient is φ = 612215076.

The previous prime is 612215053. The next prime is 612215099. The reversal of 612215077 is 770512216.

612215077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 607080321 + 5134756 = 24639^2 + 2266^2 .

It is a cyclic number.

It is not a de Polignac number, because 612215077 - 2¹⁵ = 612182309 is a prime.

It is a super-2 number, since 2×612215077² = 749614601012231858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (612215677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306107538 + 306107539.

It is an arithmetic number, because the mean of its divisors is an integer number (306107539).

Almost surely, 2^612215077 is an apocalyptic number.

It is an amenable number.

612215077 is a deficient number, since it is larger than the sum of its proper divisors (1).

612215077 is an equidigital number, since it uses as much as digits as its factorization.

612215077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 612215077 is about 24742.9803580733. The cubic root of 612215077 is about 849.1179209340.

The spelling of 612215077 in words is "six hundred twelve million, two hundred fifteen thousand, seventy-seven".