1245454056 has 320 divisors, whose sum is σ = 4408272000. Its totient is φ = 319127040.

The previous prime is 1245454043. The next prime is 1245454139. The reversal of 1245454056 is 6504545421.

1245454056 is a `hidden beast` number, since 1 + 24 + 545 + 40 + 56 = 666.

It is a super-2 number, since 2×1245454056² = 3102311611213702272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1245454056.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 5438550 + ... + 5438778.

It is an arithmetic number, because the mean of its divisors is an integer number (13775850).

Almost surely, 2^1245454056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1245454056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2204136000).

1245454056 is an abundant number, since it is smaller than the sum of its proper divisors (3162817944).

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

1245454056 is a wasteful number, since it uses less digits than its factorization.

1245454056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374 (or 361 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

The square root of 1245454056 is about 35290.9911450500. The cubic root of 1245454056 is about 1075.9099001868.

Adding to 1245454056 its reverse (6504545421), we get a palindrome (7749999477).

The spelling of 1245454056 in words is "one billion, two hundred forty-five million, four hundred fifty-four thousand, fifty-six".