220713943 has 2 divisors, whose sum is σ = 220713944. Its totient is φ = 220713942.

The previous prime is 220713887. The next prime is 220713959. The reversal of 220713943 is 349317022.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220713943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220710943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110356971 + 110356972.

It is an arithmetic number, because the mean of its divisors is an integer number (110356972).

Almost surely, 2^220713943 is an apocalyptic number.

220713943 is a deficient number, since it is larger than the sum of its proper divisors (1).

220713943 is an equidigital number, since it uses as much as digits as its factorization.

220713943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 220713943 is about 14856.4444938888. Note that the first 4 decimals coincide. The cubic root of 220713943 is about 604.3333895824. Note that the first 4 decimals are identical.

The spelling of 220713943 in words is "two hundred twenty million, seven hundred thirteen thousand, nine hundred forty-three".