1225422782 has 12 divisors (see below), whose sum is σ = 1903706376. Its totient is φ = 591582600.

The previous prime is 1225422769. The next prime is 1225422851. The reversal of 1225422782 is 2872245221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 362594 + ... + 365957.

It is an arithmetic number, because the mean of its divisors is an integer number (158642198).

Almost surely, 2^1225422782 is an apocalyptic number.

1225422782 is a deficient number, since it is larger than the sum of its proper divisors (678283594).

1225422782 is an equidigital number, since it uses as much as digits as its factorization.

1225422782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728611 (or 728582 counting only the distinct ones).

The product of its digits is 35840, while the sum is 35.

The square root of 1225422782 is about 35006.0392218257. The cubic root of 1225422782 is about 1070.1105606780.

The spelling of 1225422782 in words is "one billion, two hundred twenty-five million, four hundred twenty-two thousand, seven hundred eighty-two".