1361445357 has 32 divisors (see below), whose sum is σ = 1959085440. Its totient is φ = 837939200.

The previous prime is 1361445347. The next prime is 1361445359. The reversal of 1361445357 is 7535441631.

It is a cyclic number.

It is not a de Polignac number, because 1361445357 - 2⁴ = 1361445341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361445359) 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 31 ways as a sum of consecutive naturals, for example, 580894 + ... + 583232.

It is an arithmetic number, because the mean of its divisors is an integer number (61221420).

Almost surely, 2^1361445357 is an apocalyptic number.

1361445357 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1361445357 is a deficient number, since it is larger than the sum of its proper divisors (597640083).

1361445357 is a wasteful number, since it uses less digits than its factorization.

1361445357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2573.

The product of its digits is 151200, while the sum is 39.

The square root of 1361445357 is about 36897.7689975966. The cubic root of 1361445357 is about 1108.3240017958.

Adding to 1361445357 its reverse (7535441631), we get a palindrome (8896886988).

The spelling of 1361445357 in words is "one billion, three hundred sixty-one million, four hundred forty-five thousand, three hundred fifty-seven".