1361242403 has 8 divisors (see below), whose sum is σ = 1433226000. Its totient is φ = 1289292768.

The previous prime is 1361242381. The next prime is 1361242427. The reversal of 1361242403 is 3042421631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1361242403 - 2¹⁰ = 1361241379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1361242453) 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 7 ways as a sum of consecutive naturals, for example, 146525 + ... + 155537.

It is an arithmetic number, because the mean of its divisors is an integer number (179153250).

Almost surely, 2^1361242403 is an apocalyptic number.

1361242403 is a deficient number, since it is larger than the sum of its proper divisors (71983597).

1361242403 is an equidigital number, since it uses as much as digits as its factorization.

1361242403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16981.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 1361242403 is about 36895.0186746124. The cubic root of 1361242403 is about 1108.2689255328.

The spelling of 1361242403 in words is "one billion, three hundred sixty-one million, two hundred forty-two thousand, four hundred three".