445310235421 has 2 divisors, whose sum is σ = 445310235422. Its totient is φ = 445310235420.

The previous prime is 445310235413. The next prime is 445310235439. The reversal of 445310235421 is 124532013544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 352841940025 + 92468295396 = 594005^2 + 304086^2 .

It is a cyclic number.

It is not a de Polignac number, because 445310235421 - 2³ = 445310235413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445310235401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222655117710 + 222655117711.

It is an arithmetic number, because the mean of its divisors is an integer number (222655117711).

Almost surely, 2^445310235421 is an apocalyptic number.

It is an amenable number.

445310235421 is a deficient number, since it is larger than the sum of its proper divisors (1).

445310235421 is an equidigital number, since it uses as much as digits as its factorization.

445310235421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 445310235421 its reverse (124532013544), we get a palindrome (569842248965).

The spelling of 445310235421 in words is "four hundred forty-five billion, three hundred ten million, two hundred thirty-five thousand, four hundred twenty-one".