1361032643 has 8 divisors (see below), whose sum is σ = 1436778000. Its totient is φ = 1285698528.

The previous prime is 1361032639. The next prime is 1361032657. The reversal of 1361032643 is 3462301631.

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 1361032643 - 2² = 1361032639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1361062643) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 95996 + ... + 109257.

It is an arithmetic number, because the mean of its divisors is an integer number (179597250).

Almost surely, 2^1361032643 is an apocalyptic number.

1361032643 is a deficient number, since it is larger than the sum of its proper divisors (75745357).

1361032643 is a wasteful number, since it uses less digits than its factorization.

1361032643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205621.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 1361032643 is about 36892.1759049260. The cubic root of 1361032643 is about 1108.2119965510.

The spelling of 1361032643 in words is "one billion, three hundred sixty-one million, thirty-two thousand, six hundred forty-three".