1000445146 has 8 divisors (see below), whose sum is σ = 1541226420. Its totient is φ = 486703008.

The previous prime is 1000445137. The next prime is 1000445213. The reversal of 1000445146 is 6415440001.

It can be written as a sum of positive squares in 2 ways, for example, as 879774921 + 120670225 = 29661^2 + 10985^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1000445146² = 2001780980309922632, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1000445146.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6759691 + ... + 6759838.

Almost surely, 2^1000445146 is an apocalyptic number.

1000445146 is a deficient number, since it is larger than the sum of its proper divisors (540781274).

1000445146 is a wasteful number, since it uses less digits than its factorization.

1000445146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13519568.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 1000445146 is about 31629.8141948384. The cubic root of 1000445146 is about 1000.1483599882.

Adding to 1000445146 its reverse (6415440001), we get a palindrome (7415885147).

The spelling of 1000445146 in words is "one billion, four hundred forty-five thousand, one hundred forty-six".