1361224271 has 4 divisors (see below), whose sum is σ = 1484971944. Its totient is φ = 1237476600.

The previous prime is 1361224253. The next prime is 1361224279. The reversal of 1361224271 is 1724221631.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1361224271 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 (1361224279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61873820 + ... + 61873841.

It is an arithmetic number, because the mean of its divisors is an integer number (371242986).

Almost surely, 2^1361224271 is an apocalyptic number.

1361224271 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1361224271 is a deficient number, since it is larger than the sum of its proper divisors (123747673).

1361224271 is a wasteful number, since it uses less digits than its factorization.

1361224271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123747672.

The product of its digits is 4032, while the sum is 29.

The square root of 1361224271 is about 36894.7729495656. The cubic root of 1361224271 is about 1108.2640047287.

The spelling of 1361224271 in words is "one billion, three hundred sixty-one million, two hundred twenty-four thousand, two hundred seventy-one".