1004020105 has 16 divisors (see below), whose sum is σ = 1315341504. Its totient is φ = 729647680.

The previous prime is 1004020099. The next prime is 1004020133. The reversal of 1004020105 is 5010204001.

It is not a de Polignac number, because 1004020105 - 2²⁷ = 869802377 is a prime.

It is a super-2 number, since 2×1004020105² = 2016112742488422050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76002 + ... + 88228.

It is an arithmetic number, because the mean of its divisors is an integer number (82208844).

Almost surely, 2^1004020105 is an apocalyptic number.

It is an amenable number.

1004020105 is a deficient number, since it is larger than the sum of its proper divisors (311321399).

1004020105 is a wasteful number, since it uses less digits than its factorization.

1004020105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13736.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 1004020105 is about 31686.2762880083. The cubic root of 1004020105 is about 1001.3382433060.

Adding to 1004020105 its reverse (5010204001), we get a palindrome (6014224106).

The spelling of 1004020105 in words is "one billion, four million, twenty thousand, one hundred five".