356242643 has 2 divisors, whose sum is σ = 356242644. Its totient is φ = 356242642.

The previous prime is 356242639. The next prime is 356242651. The reversal of 356242643 is 346242653.

It is a weak prime.

It is an emirp because it is prime and its reverse (346242653) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 356242643 - 2² = 356242639 is a prime.

It is not a weakly prime, because it can be changed into another prime (356242603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 178121321 + 178121322.

It is an arithmetic number, because the mean of its divisors is an integer number (178121322).

Almost surely, 2^356242643 is an apocalyptic number.

356242643 is a deficient number, since it is larger than the sum of its proper divisors (1).

356242643 is an equidigital number, since it uses as much as digits as its factorization.

356242643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 35.

The square root of 356242643 is about 18874.3911954797. The cubic root of 356242643 is about 708.8950895903.

The spelling of 356242643 in words is "three hundred fifty-six million, two hundred forty-two thousand, six hundred forty-three".