1225474516 has 48 divisors (see below), whose sum is σ = 2581734400. Its totient is φ = 508243680.

The previous prime is 1225474487. The next prime is 1225474519. The reversal of 1225474516 is 6154745221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225474519) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28126 + ... + 56938.

Almost surely, 2^1225474516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1225474516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1290867200).

1225474516 is an abundant number, since it is smaller than the sum of its proper divisors (1356259884).

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

1225474516 is a wasteful number, since it uses less digits than its factorization.

1225474516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28869 (or 28853 counting only the distinct ones).

The product of its digits is 67200, while the sum is 37.

The square root of 1225474516 is about 35006.7781436681. The cubic root of 1225474516 is about 1070.1256195136.

The spelling of 1225474516 in words is "one billion, two hundred twenty-five million, four hundred seventy-four thousand, five hundred sixteen".