1229425285 has 8 divisors (see below), whose sum is σ = 1609429536. Its totient is φ = 894127440.

The previous prime is 1229425273. The next prime is 1229425291. The reversal of 1229425285 is 5825249221.

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

It is not a de Polignac number, because 1229425285 - 2⁷ = 1229425157 is a prime.

It is a super-2 number, since 2×1229425285² = 3022973062794662450, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 11176539 + ... + 11176648.

It is an arithmetic number, because the mean of its divisors is an integer number (201178692).

Almost surely, 2^1229425285 is an apocalyptic number.

It is an amenable number.

1229425285 is a deficient number, since it is larger than the sum of its proper divisors (380004251).

1229425285 is a wasteful number, since it uses less digits than its factorization.

1229425285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22353203.

The product of its digits is 115200, while the sum is 40.

The square root of 1229425285 is about 35063.1613663115. The cubic root of 1229425285 is about 1071.2743674413.

The spelling of 1229425285 in words is "one billion, two hundred twenty-nine million, four hundred twenty-five thousand, two hundred eighty-five".