1225361750 has 32 divisors (see below), whose sum is σ = 2296764288. Its totient is φ = 489528000.

The previous prime is 1225361747. The next prime is 1225361773. The reversal of 1225361750 is 571635221.

It is a super-2 number, since 2×1225361750² = 3003022836726125000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231635 + ... + 236865.

It is an arithmetic number, because the mean of its divisors is an integer number (71773884).

Almost surely, 2^1225361750 is an apocalyptic number.

1225361750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225361750 is a deficient number, since it is larger than the sum of its proper divisors (1071402538).

1225361750 is an equidigital number, since it uses as much as digits as its factorization.

1225361750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6185 (or 6175 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 1225361750 is about 35005.1674756742. The cubic root of 1225361750 is about 1070.0927948171.

Adding to 1225361750 its reverse (571635221), we get a palindrome (1796996971).

The spelling of 1225361750 in words is "one billion, two hundred twenty-five million, three hundred sixty-one thousand, seven hundred fifty".