1225031352 has 16 divisors (see below), whose sum is σ = 3062578440. Its totient is φ = 408343776.

The previous prime is 1225031329. The next prime is 1225031377. The reversal of 1225031352 is 2531305221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 51042973 = 1225031352 / (1 + 2 + 2 + 5 + 0 + 3 + 1 + 3 + 5 + 2).

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, 25521463 + ... + 25521510.

Almost surely, 2^1225031352 is an apocalyptic number.

1225031352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1225031352 is an abundant number, since it is smaller than the sum of its proper divisors (1837547088).

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

1225031352 is a wasteful number, since it uses less digits than its factorization.

1225031352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51042982 (or 51042978 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 1225031352 is about 35000.4478828486. The cubic root of 1225031352 is about 1069.9966087178.

Adding to 1225031352 its reverse (2531305221), we get a palindrome (3756336573).

The spelling of 1225031352 in words is "one billion, two hundred twenty-five million, thirty-one thousand, three hundred fifty-two".