445481537 has 2 divisors, whose sum is σ = 445481538. Its totient is φ = 445481536.

The previous prime is 445481473. The next prime is 445481567. The reversal of 445481537 is 735184544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 443060401 + 2421136 = 21049^2 + 1556^2 .

It is a cyclic number.

It is not a de Polignac number, because 445481537 - 2⁶ = 445481473 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 445481494 and 445481503.

It is not a weakly prime, because it can be changed into another prime (445481567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222740768 + 222740769.

It is an arithmetic number, because the mean of its divisors is an integer number (222740769).

Almost surely, 2^445481537 is an apocalyptic number.

It is an amenable number.

445481537 is a deficient number, since it is larger than the sum of its proper divisors (1).

445481537 is an equidigital number, since it uses as much as digits as its factorization.

445481537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 268800, while the sum is 41.

The square root of 445481537 is about 21106.4335452487. The cubic root of 445481537 is about 763.7359545724.

The spelling of 445481537 in words is "four hundred forty-five million, four hundred eighty-one thousand, five hundred thirty-seven".