612467197 has 2 divisors, whose sum is σ = 612467198. Its totient is φ = 612467196.

The previous prime is 612467137. The next prime is 612467213. The reversal of 612467197 is 791764216.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 409091076 + 203376121 = 20226^2 + 14261^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-612467197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (612467137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306233598 + 306233599.

It is an arithmetic number, because the mean of its divisors is an integer number (306233599).

Almost surely, 2^612467197 is an apocalyptic number.

It is an amenable number.

612467197 is a deficient number, since it is larger than the sum of its proper divisors (1).

612467197 is an equidigital number, since it uses as much as digits as its factorization.

612467197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 43.

The square root of 612467197 is about 24748.0746119774. The cubic root of 612467197 is about 849.2344650690.

The spelling of 612467197 in words is "six hundred twelve million, four hundred sixty-seven thousand, one hundred ninety-seven".