1225181468 has 12 divisors (see below), whose sum is σ = 2450362992. Its totient is φ = 525077760.

The previous prime is 1225181459. The next prime is 1225181471. The reversal of 1225181468 is 8641815221.

1225181468 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21878213 + ... + 21878268.

It is an arithmetic number, because the mean of its divisors is an integer number (204196916).

Almost surely, 2^1225181468 is an apocalyptic number.

It is an amenable number.

1225181468 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1225181468 is a wasteful number, since it uses less digits than its factorization.

1225181468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43756492 (or 43756490 counting only the distinct ones).

The product of its digits is 30720, while the sum is 38.

The square root of 1225181468 is about 35002.5923039994. The cubic root of 1225181468 is about 1070.0403129191.

Adding to 1225181468 its reverse (8641815221), we get a palindrome (9866996689).

The spelling of 1225181468 in words is "one billion, two hundred twenty-five million, one hundred eighty-one thousand, four hundred sixty-eight".