1012004145 has 32 divisors (see below), whose sum is σ = 1857162240. Its totient is φ = 522322560.

The previous prime is 1012004111. The next prime is 1012004159. The reversal of 1012004145 is 5414002101.

It is not a de Polignac number, because 1012004145 - 2¹⁰ = 1012003121 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116724 + ... + 125093.

It is an arithmetic number, because the mean of its divisors is an integer number (58036320).

Almost surely, 2^1012004145 is an apocalyptic number.

1012004145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1012004145 is a deficient number, since it is larger than the sum of its proper divisors (845158095).

1012004145 is a wasteful number, since it uses less digits than its factorization.

1012004145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241862 (or 241856 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1012004145 is about 31812.0125895863. The cubic root of 1012004145 is about 1003.9854765416.

Adding to 1012004145 its reverse (5414002101), we get a palindrome (6426006246).

The spelling of 1012004145 in words is "one billion, twelve million, four thousand, one hundred forty-five".