1071669445 has 48 divisors (see below), whose sum is σ = 1717934400. Its totient is φ = 632862720.

The previous prime is 1071669437. The next prime is 1071669463. The reversal of 1071669445 is 5449661701.

1071669445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1071669445 - 2³ = 1071669437 is a prime.

It is a super-2 number, since 2×1071669445² = 2296950798693216050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40741 + ... + 61669.

It is an arithmetic number, because the mean of its divisors is an integer number (35790300).

Almost surely, 2^1071669445 is an apocalyptic number.

It is an amenable number.

1071669445 is a deficient number, since it is larger than the sum of its proper divisors (646264955).

1071669445 is a wasteful number, since it uses less digits than its factorization.

1071669445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20978 (or 20971 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 1071669445 is about 32736.3627332054. The cubic root of 1071669445 is about 1023.3407841686.

It can be divided in two parts, 107166 and 9445, that added together give a palindrome (116611).

The spelling of 1071669445 in words is "one billion, seventy-one million, six hundred sixty-nine thousand, four hundred forty-five".