1225300032 has 84 divisors (see below), whose sum is σ = 3831403056. Its totient is φ = 371301120.

The previous prime is 1225300003. The next prime is 1225300081. The reversal of 1225300032 is 2300035221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1225299978 and 1225300014.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90358 + ... + 103029.

Almost surely, 2^1225300032 is an apocalyptic number.

1225300032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1225300032 is an abundant number, since it is smaller than the sum of its proper divisors (2606103024).

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

1225300032 is a wasteful number, since it uses less digits than its factorization.

1225300032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193416 (or 193403 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 1225300032 is about 35004.2859090141. The cubic root of 1225300032 is about 1070.0748286679.

Adding to 1225300032 its reverse (2300035221), we get a palindrome (3525335253).

The spelling of 1225300032 in words is "one billion, two hundred twenty-five million, three hundred thousand, thirty-two".