1361461805 has 16 divisors (see below), whose sum is σ = 1830449664. Its totient is φ = 963391680.

The previous prime is 1361461799. The next prime is 1361461807. The reversal of 1361461805 is 5081641631.

It is not a de Polignac number, because 1361461805 - 2¹⁶ = 1361396269 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 (1361461807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332477 + ... + 336546.

It is an arithmetic number, because the mean of its divisors is an integer number (114403104).

Almost surely, 2^1361461805 is an apocalyptic number.

It is an amenable number.

1361461805 is a deficient number, since it is larger than the sum of its proper divisors (468987859).

1361461805 is a wasteful number, since it uses less digits than its factorization.

1361461805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669076.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 1361461805 is about 36897.9918830280. The cubic root of 1361461805 is about 1108.3284651013.

The spelling of 1361461805 in words is "one billion, three hundred sixty-one million, four hundred sixty-one thousand, eight hundred five".