1225609048 has 32 divisors (see below), whose sum is σ = 2354418000. Its totient is φ = 597800448.

The previous prime is 1225609019. The next prime is 1225609057. The reversal of 1225609048 is 8409065221.

It is a junction number, because it is equal to n+sod(n) for n = 1225608998 and 1225609016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353628 + ... + 357076.

Almost surely, 2^1225609048 is an apocalyptic number.

It is an amenable number.

1225609048 is a deficient number, since it is larger than the sum of its proper divisors (1128808952).

1225609048 is a wasteful number, since it uses less digits than its factorization.

1225609048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4531 (or 4527 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 1225609048 is about 35008.6996045269. The cubic root of 1225609048 is about 1070.1647773718.

The spelling of 1225609048 in words is "one billion, two hundred twenty-five million, six hundred nine thousand, forty-eight".