612136747 has 2 divisors, whose sum is σ = 612136748. Its totient is φ = 612136746.

The previous prime is 612136711. The next prime is 612136753. The reversal of 612136747 is 747631216.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 612136747 - 2⁷ = 612136619 is a prime.

It is a super-2 number, since 2×612136747² = 749422794055484018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (612136787) 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, 306068373 + 306068374.

It is an arithmetic number, because the mean of its divisors is an integer number (306068374).

Almost surely, 2^612136747 is an apocalyptic number.

612136747 is a deficient number, since it is larger than the sum of its proper divisors (1).

612136747 is an equidigital number, since it uses as much as digits as its factorization.

612136747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 37.

The square root of 612136747 is about 24741.3974342599. The cubic root of 612136747 is about 849.0817058597.

The spelling of 612136747 in words is "six hundred twelve million, one hundred thirty-six thousand, seven hundred forty-seven".