1361897055 has 12 divisors (see below), whose sum is σ = 2360621640. Its totient is φ = 726345072.

The previous prime is 1361897027. The next prime is 1361897087. The reversal of 1361897055 is 5507981631.

It is a happy number.

It is not a de Polignac number, because 1361897055 - 2²⁸ = 1093461599 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 30264379 = 1361897055 / (1 + 3 + 6 + 1 + 8 + 9 + 7 + 0 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 1361897055.

It is a congruent number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 15132145 + ... + 15132234.

It is an arithmetic number, because the mean of its divisors is an integer number (196718470).

Almost surely, 2^1361897055 is an apocalyptic number.

1361897055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1361897055 is a deficient number, since it is larger than the sum of its proper divisors (998724585).

1361897055 is a wasteful number, since it uses less digits than its factorization.

1361897055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30264390 (or 30264387 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The square root of 1361897055 is about 36903.8894291645. The cubic root of 1361897055 is about 1108.4465608533.

The spelling of 1361897055 in words is "one billion, three hundred sixty-one million, eight hundred ninety-seven thousand, fifty-five".