1005514645 has 8 divisors (see below), whose sum is σ = 1217688120. Its totient is φ = 797031360.

The previous prime is 1005514619. The next prime is 1005514669. The reversal of 1005514645 is 5464155001.

It can be written as a sum of positive squares in 4 ways, for example, as 273108676 + 732405969 = 16526^2 + 27063^2 .

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

It is not a de Polignac number, because 1005514645 - 2¹⁵ = 1005481877 is a prime.

It is a super-2 number, since 2×1005514645² = 2022119402618952050, 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 7 ways as a sum of consecutive naturals, for example, 921946 + ... + 923035.

It is an arithmetic number, because the mean of its divisors is an integer number (152211015).

Almost surely, 2^1005514645 is an apocalyptic number.

It is an amenable number.

1005514645 is a deficient number, since it is larger than the sum of its proper divisors (212173475).

1005514645 is a wasteful number, since it uses less digits than its factorization.

1005514645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1845095.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 1005514645 is about 31709.8509141875. The cubic root of 1005514645 is about 1001.8348462800.

Adding to 1005514645 its reverse (5464155001), we get a palindrome (6469669646).

The spelling of 1005514645 in words is "one billion, five million, five hundred fourteen thousand, six hundred forty-five".