1445021522 has 16 divisors (see below), whose sum is σ = 2622896640. Its totient is φ = 582865728.

The previous prime is 1445021453. The next prime is 1445021527. The reversal of 1445021522 is 2251205441.

It is a junction number, because it is equal to n+sod(n) for n = 1445021491 and 1445021500.

It is not an unprimeable number, because it can be changed into a prime (1445021527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3035522 + ... + 3035997.

It is an arithmetic number, because the mean of its divisors is an integer number (163931040).

Almost surely, 2^1445021522 is an apocalyptic number.

1445021522 is a deficient number, since it is larger than the sum of its proper divisors (1177875118).

1445021522 is a wasteful number, since it uses less digits than its factorization.

1445021522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6071545.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 1445021522 is about 38013.4387026483. The cubic root of 1445021522 is about 1130.5543321420.

Adding to 1445021522 its reverse (2251205441), we get a palindrome (3696226963).

The spelling of 1445021522 in words is "one billion, four hundred forty-five million, twenty-one thousand, five hundred twenty-two".