445223357 has 2 divisors, whose sum is σ = 445223358. Its totient is φ = 445223356.

The previous prime is 445223327. The next prime is 445223369. The reversal of 445223357 is 753322544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 378458116 + 66765241 = 19454^2 + 8171^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445223357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445223327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222611678 + 222611679.

It is an arithmetic number, because the mean of its divisors is an integer number (222611679).

Almost surely, 2^445223357 is an apocalyptic number.

It is an amenable number.

445223357 is a deficient number, since it is larger than the sum of its proper divisors (1).

445223357 is an equidigital number, since it uses as much as digits as its factorization.

445223357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100800, while the sum is 35.

The square root of 445223357 is about 21100.3165142137. The cubic root of 445223357 is about 763.5883843313.

The spelling of 445223357 in words is "four hundred forty-five million, two hundred twenty-three thousand, three hundred fifty-seven".