1356224643 has 24 divisors (see below), whose sum is σ = 2032121520. Its totient is φ = 870569280.

The previous prime is 1356224641. The next prime is 1356224669. The reversal of 1356224643 is 3464226531.

1356224643 is a `hidden beast` number, since 1 + 3 + 5 + 6 + 2 + 2 + 4 + 643 = 666.

It is not a de Polignac number, because 1356224643 - 2¹ = 1356224641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1356224598 and 1356224607.

It is not an unprimeable number, because it can be changed into a prime (1356224641) 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 23 ways as a sum of consecutive naturals, for example, 90388 + ... + 104318.

It is an arithmetic number, because the mean of its divisors is an integer number (84671730).

Almost surely, 2^1356224643 is an apocalyptic number.

1356224643 is a deficient number, since it is larger than the sum of its proper divisors (675896877).

1356224643 is a wasteful number, since it uses less digits than its factorization.

1356224643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14339 (or 14336 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 1356224643 is about 36826.9553859669. The cubic root of 1356224643 is about 1106.9054959559.

The spelling of 1356224643 in words is "one billion, three hundred fifty-six million, two hundred twenty-four thousand, six hundred forty-three".