1225591470 has 48 divisors (see below), whose sum is σ = 3234114000. Its totient is φ = 321944832.

The previous prime is 1225591463. The next prime is 1225591511. The reversal of 1225591470 is 741955221.

1225591470 is a `hidden beast` number, since 1 + 2 + 25 + 591 + 47 + 0 = 666.

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 23 ways as a sum of consecutive naturals, for example, 95595 + ... + 107654.

It is an arithmetic number, because the mean of its divisors is an integer number (67377375).

Almost surely, 2^1225591470 is an apocalyptic number.

1225591470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225591470 is an abundant number, since it is smaller than the sum of its proper divisors (2008522530).

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

1225591470 is a wasteful number, since it uses less digits than its factorization.

1225591470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203329 (or 203326 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 1225591470 is about 35008.4485517425. The cubic root of 1225591470 is about 1070.1596611546.

The spelling of 1225591470 in words is "one billion, two hundred twenty-five million, five hundred ninety-one thousand, four hundred seventy".