1225331630 has 8 divisors (see below), whose sum is σ = 2205596952. Its totient is φ = 490132648.

The previous prime is 1225331623. The next prime is 1225331677. The reversal of 1225331630 is 361335221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1225331630.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61266572 + ... + 61266591.

It is an arithmetic number, because the mean of its divisors is an integer number (275699619).

Almost surely, 2^1225331630 is an apocalyptic number.

1225331630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225331630 is a deficient number, since it is larger than the sum of its proper divisors (980265322).

1225331630 is a wasteful number, since it uses less digits than its factorization.

1225331630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122533170.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 1225331630 is about 35004.7372508351. The cubic root of 1225331630 is about 1070.0840269413.

Adding to 1225331630 its reverse (361335221), we get a palindrome (1586666851).

The spelling of 1225331630 in words is "one billion, two hundred twenty-five million, three hundred thirty-one thousand, six hundred thirty".