127734613 has 2 divisors, whose sum is σ = 127734614. Its totient is φ = 127734612.

The previous prime is 127734577. The next prime is 127734631. The reversal of 127734613 is 316437721.

Together with next prime (127734631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107682129 + 20052484 = 10377^2 + 4478^2 .

It is an emirp because it is prime and its reverse (316437721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 127734613 - 2²¹ = 125637461 is a prime.

It is a super-2 number, since 2×127734613² = 32632262716519538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127734913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63867306 + 63867307.

It is an arithmetic number, because the mean of its divisors is an integer number (63867307).

Almost surely, 2^127734613 is an apocalyptic number.

It is an amenable number.

127734613 is a deficient number, since it is larger than the sum of its proper divisors (1).

127734613 is an equidigital number, since it uses as much as digits as its factorization.

127734613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 34.

The square root of 127734613 is about 11301.9738541549. The cubic root of 127734613 is about 503.6198803548.

The spelling of 127734613 in words is "one hundred twenty-seven million, seven hundred thirty-four thousand, six hundred thirteen".