1361156647 has 2 divisors, whose sum is σ = 1361156648. Its totient is φ = 1361156646.

The previous prime is 1361156593. The next prime is 1361156651. The reversal of 1361156647 is 7466511631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1361156647 - 2¹⁵ = 1361123879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1361156747) 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, 680578323 + 680578324.

It is an arithmetic number, because the mean of its divisors is an integer number (680578324).

Almost surely, 2^1361156647 is an apocalyptic number.

1361156647 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361156647 is an equidigital number, since it uses as much as digits as its factorization.

1361156647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 40.

The square root of 1361156647 is about 36893.8564940018. The cubic root of 1361156647 is about 1108.2456520130.

The spelling of 1361156647 in words is "one billion, three hundred sixty-one million, one hundred fifty-six thousand, six hundred forty-seven".