1213225363 has 8 divisors (see below), whose sum is σ = 1387564128. Its totient is φ = 1039141824.

The previous prime is 1213225337. The next prime is 1213225379. The reversal of 1213225363 is 3635223121.

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

It is not a de Polignac number, because 1213225363 - 2²¹ = 1211128211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213225303) 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, 53506 + ... + 72727.

It is an arithmetic number, because the mean of its divisors is an integer number (173445516).

Almost surely, 2^1213225363 is an apocalyptic number.

1213225363 is a deficient number, since it is larger than the sum of its proper divisors (174338765).

1213225363 is a wasteful number, since it uses less digits than its factorization.

1213225363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127613.

The product of its digits is 6480, while the sum is 28.

The square root of 1213225363 is about 34831.3847413507. The cubic root of 1213225363 is about 1066.5482160244.

Adding to 1213225363 its reverse (3635223121), we get a palindrome (4848448484).

It can be divided in two parts, 1213 and 225363, that added together give a square (226576 = 476²).

The spelling of 1213225363 in words is "one billion, two hundred thirteen million, two hundred twenty-five thousand, three hundred sixty-three".