1225437308 has 12 divisors (see below), whose sum is σ = 2145150672. Its totient is φ = 612537120.

The previous prime is 1225437307. The next prime is 1225437341. The reversal of 1225437308 is 8037345221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225437307) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 29585 + ... + 57672.

It is an arithmetic number, because the mean of its divisors is an integer number (178762556).

Almost surely, 2^1225437308 is an apocalyptic number.

It is an amenable number.

1225437308 is a deficient number, since it is larger than the sum of its proper divisors (919713364).

1225437308 is a wasteful number, since it uses less digits than its factorization.

1225437308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90772 (or 90770 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 1225437308 is about 35006.2466996963. The cubic root of 1225437308 is about 1070.1147889778.

The spelling of 1225437308 in words is "one billion, two hundred twenty-five million, four hundred thirty-seven thousand, three hundred eight".