1361227005 has 32 divisors (see below), whose sum is σ = 2423137920. Its totient is φ = 725034240.

The previous prime is 1361227001. The next prime is 1361227033. The reversal of 1361227005 is 5007221631.

It is a happy number.

1361227005 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1361227005 - 2² = 1361227001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 1361227005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361227001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103269 + ... + 115701.

It is an arithmetic number, because the mean of its divisors is an integer number (75723060).

Almost surely, 2^1361227005 is an apocalyptic number.

1361227005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1361227005 is a deficient number, since it is larger than the sum of its proper divisors (1061910915).

1361227005 is a wasteful number, since it uses less digits than its factorization.

1361227005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13258 (or 13252 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 1361227005 is about 36894.8100008660. The cubic root of 1361227005 is about 1108.2647467058.

Adding to 1361227005 its reverse (5007221631), we get a palindrome (6368448636).

The spelling of 1361227005 in words is "one billion, three hundred sixty-one million, two hundred twenty-seven thousand, five".