1361090355 has 16 divisors (see below), whose sum is σ = 2180624544. Its totient is φ = 724954880.

The previous prime is 1361090351. The next prime is 1361090359. The reversal of 1361090355 is 5530901631.

It is an interprime number because it is at equal distance from previous prime (1361090351) and next prime (1361090359).

It is not a de Polignac number, because 1361090355 - 2² = 1361090351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1361090351) 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 in 15 ways as a sum of consecutive naturals, for example, 48204 + ... + 71033.

It is an arithmetic number, because the mean of its divisors is an integer number (136289034).

Almost surely, 2^1361090355 is an apocalyptic number.

1361090355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1361090355 is a deficient number, since it is larger than the sum of its proper divisors (819534189).

1361090355 is a wasteful number, since it uses less digits than its factorization.

1361090355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120006.

The product of its (nonzero) digits is 12150, while the sum is 33.

The square root of 1361090355 is about 36892.9580679023. The cubic root of 1361090355 is about 1108.2276602035.

Adding to 1361090355 its reverse (5530901631), we get a palindrome (6891991986).

The spelling of 1361090355 in words is "one billion, three hundred sixty-one million, ninety thousand, three hundred fifty-five".