1361604727 has 4 divisors (see below), whose sum is σ = 1556119696. Its totient is φ = 1167089760.

The previous prime is 1361604697. The next prime is 1361604731. The reversal of 1361604727 is 7274061631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7274061631 = 19 ⋅382845349.

It is a cyclic number.

It is not a de Polignac number, because 1361604727 - 2¹¹ = 1361602679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361604757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97257474 + ... + 97257487.

It is an arithmetic number, because the mean of its divisors is an integer number (389029924).

Almost surely, 2^1361604727 is an apocalyptic number.

1361604727 is a deficient number, since it is larger than the sum of its proper divisors (194514969).

1361604727 is an equidigital number, since it uses as much as digits as its factorization.

1361604727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194514968.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 1361604727 is about 36899.9285500663. The cubic root of 1361604727 is about 1108.3672466957.

The spelling of 1361604727 in words is "one billion, three hundred sixty-one million, six hundred four thousand, seven hundred twenty-seven".