1005205134 has 32 divisors (see below), whose sum is σ = 2086492320. Its totient is φ = 322463232.

The previous prime is 1005205129. The next prime is 1005205139. The reversal of 1005205134 is 4315025001.

It is an interprime number because it is at equal distance from previous prime (1005205129) and next prime (1005205139).

It is a super-2 number, since 2×1005205134² = 2020874722839915912, 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 1005205134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005205139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45234 + ... + 63690.

It is an arithmetic number, because the mean of its divisors is an integer number (65202885).

Almost surely, 2^1005205134 is an apocalyptic number.

1005205134 is an abundant number, since it is smaller than the sum of its proper divisors (1081287186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1005205134 is a wasteful number, since it uses less digits than its factorization.

1005205134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18804.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1005205134 is about 31704.9701781913. The cubic root of 1005205134 is about 1001.7320429618.

The spelling of 1005205134 in words is "one billion, five million, two hundred five thousand, one hundred thirty-four".