1225311463 has 8 divisors (see below), whose sum is σ = 1301857920. Its totient is φ = 1149970680.

The previous prime is 1225311433. The next prime is 1225311473. The reversal of 1225311463 is 3641135221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1225311463 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 (1225311433) 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 7 ways as a sum of consecutive naturals, for example, 299323 + ... + 303388.

It is an arithmetic number, because the mean of its divisors is an integer number (162732240).

Almost surely, 2^1225311463 is an apocalyptic number.

1225311463 is a deficient number, since it is larger than the sum of its proper divisors (76546457).

1225311463 is a wasteful number, since it uses less digits than its factorization.

1225311463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602837.

The product of its digits is 4320, while the sum is 28.

The square root of 1225311463 is about 35004.4491886389. The cubic root of 1225311463 is about 1070.0781562848.

Adding to 1225311463 its reverse (3641135221), we get a palindrome (4866446684).

It can be divided in two parts, 12253 and 11463, that added together give a square (23716 = 154²).

The spelling of 1225311463 in words is "one billion, two hundred twenty-five million, three hundred eleven thousand, four hundred sixty-three".