1225413132 has 48 divisors (see below), whose sum is σ = 3036485760. Its totient is φ = 383539968.

The previous prime is 1225413131. The next prime is 1225413179. The reversal of 1225413132 is 2313145221.

It is not an unprimeable number, because it can be changed into a prime (1225413131) 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, 1983 + ... + 49545.

It is an arithmetic number, because the mean of its divisors is an integer number (63260120).

Almost surely, 2^1225413132 is an apocalyptic number.

1225413132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1225413132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1518242880).

1225413132 is an abundant number, since it is smaller than the sum of its proper divisors (1811072628).

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

1225413132 is a wasteful number, since it uses less digits than its factorization.

1225413132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47702 (or 47700 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 1225413132 is about 35005.9013881945. The cubic root of 1225413132 is about 1070.1077516899.

Adding to 1225413132 its reverse (2313145221), we get a palindrome (3538558353).

The spelling of 1225413132 in words is "one billion, two hundred twenty-five million, four hundred thirteen thousand, one hundred thirty-two".