1353011643 has 12 divisors (see below), whose sum is σ = 1959986808. Its totient is φ = 899406240.

The previous prime is 1353011633. The next prime is 1353011669. The reversal of 1353011643 is 3461103531.

1353011643 is a `hidden beast` number, since 1 + 3 + 5 + 3 + 0 + 11 + 643 = 666.

It is not a de Polignac number, because 1353011643 - 2¹² = 1353007547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1353011633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 213498 + ... + 219743.

It is an arithmetic number, because the mean of its divisors is an integer number (163332234).

Almost surely, 2^1353011643 is an apocalyptic number.

1353011643 is a deficient number, since it is larger than the sum of its proper divisors (606975165).

1353011643 is a wasteful number, since it uses less digits than its factorization.

1353011643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433594 (or 433591 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 1353011643 is about 36783.3065805672. The cubic root of 1353011643 is about 1106.0306901461.

The spelling of 1353011643 in words is "one billion, three hundred fifty-three million, eleven thousand, six hundred forty-three".