1361010493 has 2 divisors, whose sum is σ = 1361010494. Its totient is φ = 1361010492.

The previous prime is 1361010473. The next prime is 1361010523. The reversal of 1361010493 is 3940101631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1131851449 + 229159044 = 33643^2 + 15138^2 .

It is an emirp because it is prime and its reverse (3940101631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1361010493 - 2⁵ = 1361010461 is a prime.

It is a super-2 number, since 2×1361010493² = 3704699124112206098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1361010473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680505246 + 680505247.

It is an arithmetic number, because the mean of its divisors is an integer number (680505247).

Almost surely, 2^1361010493 is an apocalyptic number.

It is an amenable number.

1361010493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361010493 is an equidigital number, since it uses as much as digits as its factorization.

1361010493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 1361010493 is about 36891.8757045505. The cubic root of 1361010493 is about 1108.2059846872.

The spelling of 1361010493 in words is "one billion, three hundred sixty-one million, ten thousand, four hundred ninety-three".