445113203606531 has 2 divisors, whose sum is σ = 445113203606532. Its totient is φ = 445113203606530.

The previous prime is 445113203606429. The next prime is 445113203606569. The reversal of 445113203606531 is 135606302311544.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445113203606531 is a prime.

It is a super-2 number, since 2×445113203606531² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (445113203606231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222556601803265 + 222556601803266.

It is an arithmetic number, because the mean of its divisors is an integer number (222556601803266).

Almost surely, 2^{445113203606531} is an apocalyptic number.

445113203606531 is a deficient number, since it is larger than the sum of its proper divisors (1).

445113203606531 is an equidigital number, since it uses as much as digits as its factorization.

445113203606531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 445113203606531 in words is "four hundred forty-five trillion, one hundred thirteen billion, two hundred three million, six hundred six thousand, five hundred thirty-one".