223061643 has 12 divisors (see below), whose sum is σ = 368228848. Its totient is φ = 127463760.

The previous prime is 223061639. The next prime is 223061651. The reversal of 223061643 is 346160322.

223061643 is a `hidden beast` number, since 2 + 2 + 3 + 0 + 616 + 43 = 666.

It is not a de Polignac number, because 223061643 - 2² = 223061639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223061603) 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, 1770268 + ... + 1770393.

Almost surely, 2^223061643 is an apocalyptic number.

223061643 is a deficient number, since it is larger than the sum of its proper divisors (145167205).

223061643 is a wasteful number, since it uses less digits than its factorization.

223061643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3540674 (or 3540671 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 223061643 is about 14935.2483407542. The cubic root of 223061643 is about 606.4685703837.

The spelling of 223061643 in words is "two hundred twenty-three million, sixty-one thousand, six hundred forty-three".