1225134474 has 24 divisors (see below), whose sum is σ = 2472299232. Its totient is φ = 404738880.

The previous prime is 1225134473. The next prime is 1225134479. The reversal of 1225134474 is 4744315221.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1225134473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68619 + ... + 84609.

It is an arithmetic number, because the mean of its divisors is an integer number (103012468).

Almost surely, 2^1225134474 is an apocalyptic number.

1225134474 is an abundant number, since it is smaller than the sum of its proper divisors (1247164758).

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

1225134474 is a wasteful number, since it uses less digits than its factorization.

1225134474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16222 (or 16109 counting only the distinct ones).

The product of its digits is 26880, while the sum is 33.

The square root of 1225134474 is about 35001.9210044249. The cubic root of 1225134474 is about 1070.0266316486.

Adding to 1225134474 its reverse (4744315221), we get a palindrome (5969449695).

The spelling of 1225134474 in words is "one billion, two hundred twenty-five million, one hundred thirty-four thousand, four hundred seventy-four".