1245310656 has 56 divisors (see below), whose sum is σ = 3488710320. Its totient is φ = 390684672.

The previous prime is 1245310621. The next prime is 1245310657. The reversal of 1245310656 is 6560135421.

It is not an unprimeable number, because it can be changed into a prime (1245310657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187501 + ... + 194028.

Almost surely, 2^1245310656 is an apocalyptic number.

1245310656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1245310656 is an abundant number, since it is smaller than the sum of its proper divisors (2243399664).

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

1245310656 is a wasteful number, since it uses less digits than its factorization.

1245310656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381561 (or 381551 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 1245310656 is about 35288.9594065906. The cubic root of 1245310656 is about 1075.8686056349.

The spelling of 1245310656 in words is "one billion, two hundred forty-five million, three hundred ten thousand, six hundred fifty-six".