1260663453 has 64 divisors (see below), whose sum is σ = 2225766400. Its totient is φ = 690042240.

The previous prime is 1260663431. The next prime is 1260663463. The reversal of 1260663453 is 3543660621.

1260663453 is a `hidden beast` number, since 1 + 2 + 606 + 6 + 3 + 45 + 3 = 666.

It is not a de Polignac number, because 1260663453 - 2⁵ = 1260663421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1260663413) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 602433 + ... + 604521.

It is an arithmetic number, because the mean of its divisors is an integer number (34777600).

Almost surely, 2^1260663453 is an apocalyptic number.

It is an amenable number.

1260663453 is a deficient number, since it is larger than the sum of its proper divisors (965102947).

1260663453 is a wasteful number, since it uses less digits than its factorization.

1260663453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2239 (or 2233 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 1260663453 is about 35505.8228041543. The cubic root of 1260663453 is about 1080.2718374366.

The spelling of 1260663453 in words is "one billion, two hundred sixty million, six hundred sixty-three thousand, four hundred fifty-three".