1225457120 has 24 divisors (see below), whose sum is σ = 2895142824. Its totient is φ = 490182784.

The previous prime is 1225457111. The next prime is 1225457137. The reversal of 1225457120 is 217545221.

It is a happy number.

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, 3829394 + ... + 3829713.

It is an arithmetic number, because the mean of its divisors is an integer number (120630951).

Almost surely, 2^1225457120 is an apocalyptic number.

1225457120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1225457120 is an abundant number, since it is smaller than the sum of its proper divisors (1669685704).

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

1225457120 is an equidigital number, since it uses as much as digits as its factorization.

1225457120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7659122 (or 7659114 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 1225457120 is about 35006.5296766189. The cubic root of 1225457120 is about 1070.1205558986.

The spelling of 1225457120 in words is "one billion, two hundred twenty-five million, four hundred fifty-seven thousand, one hundred twenty".