1361223215 has 8 divisors (see below), whose sum is σ = 1781965008. Its totient is φ = 989980480.

The previous prime is 1361223187. The next prime is 1361223217. The reversal of 1361223215 is 5123221631.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1361223215 - 2¹⁴ = 1361206831 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 (1361223217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12374702 + ... + 12374811.

It is an arithmetic number, because the mean of its divisors is an integer number (222745626).

Almost surely, 2^1361223215 is an apocalyptic number.

1361223215 is a deficient number, since it is larger than the sum of its proper divisors (420741793).

1361223215 is a wasteful number, since it uses less digits than its factorization.

1361223215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24749529.

The product of its digits is 2160, while the sum is 26.

The square root of 1361223215 is about 36894.7586385926. The cubic root of 1361223215 is about 1108.2637181418.

Adding to 1361223215 its reverse (5123221631), we get a palindrome (6484444846).

The spelling of 1361223215 in words is "one billion, three hundred sixty-one million, two hundred twenty-three thousand, two hundred fifteen".