1361894401 has 8 divisors (see below), whose sum is σ = 1558041984. Its totient is φ = 1166144640.

The previous prime is 1361894399. The next prime is 1361894437. The reversal of 1361894401 is 1044981631.

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 1361894401 - 2¹ = 1361894399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1361894441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92080 + ... + 105841.

It is an arithmetic number, because the mean of its divisors is an integer number (194755248).

Almost surely, 2^1361894401 is an apocalyptic number.

It is an amenable number.

1361894401 is a deficient number, since it is larger than the sum of its proper divisors (196147583).

1361894401 is an equidigital number, since it uses as much as digits as its factorization.

1361894401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198911.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 1361894401 is about 36903.8534708775. The cubic root of 1361894401 is about 1108.4458408236.

The spelling of 1361894401 in words is "one billion, three hundred sixty-one million, eight hundred ninety-four thousand, four hundred one".