1361227133 has 4 divisors (see below), whose sum is σ = 1555688160. Its totient is φ = 1166766108.

The previous prime is 1361227097. The next prime is 1361227163. The reversal of 1361227133 is 3317221631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1361227133 - 2¹² = 1361223037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1361227096 and 1361227105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361227163) 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, 97230503 + ... + 97230516.

It is an arithmetic number, because the mean of its divisors is an integer number (388922040).

Almost surely, 2^1361227133 is an apocalyptic number.

It is an amenable number.

1361227133 is a deficient number, since it is larger than the sum of its proper divisors (194461027).

1361227133 is an equidigital number, since it uses as much as digits as its factorization.

1361227133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194461026.

The product of its digits is 4536, while the sum is 29.

The square root of 1361227133 is about 36894.8117355273. The cubic root of 1361227133 is about 1108.2647814436.

Adding to 1361227133 its reverse (3317221631), we get a palindrome (4678448764).

The spelling of 1361227133 in words is "one billion, three hundred sixty-one million, two hundred twenty-seven thousand, one hundred thirty-three".