1002445185 has 48 divisors (see below), whose sum is σ = 1869224256. Its totient is φ = 457414272.

The previous prime is 1002445139. The next prime is 1002445189. The reversal of 1002445185 is 5815442001.

It is not a de Polignac number, because 1002445185 - 2⁷ = 1002445057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1002445189) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 577579 + ... + 579311.

It is an arithmetic number, because the mean of its divisors is an integer number (38942172).

Almost surely, 2^1002445185 is an apocalyptic number.

1002445185 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1002445185 is a deficient number, since it is larger than the sum of its proper divisors (866779071).

1002445185 is a wasteful number, since it uses less digits than its factorization.

1002445185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2542 (or 2535 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 1002445185 is about 31661.4147662419. The cubic root of 1002445185 is about 1000.8143982421.

Adding to 1002445185 its reverse (5815442001), we get a palindrome (6817887186).

The spelling of 1002445185 in words is "one billion, two million, four hundred forty-five thousand, one hundred eighty-five".