1205535030 has 32 divisors (see below), whose sum is σ = 3306610944. Its totient is φ = 275550816.

The previous prime is 1205534987. The next prime is 1205535049. The reversal of 1205535030 is 305355021.

It is a congruent 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, 2870112 + ... + 2870531.

It is an arithmetic number, because the mean of its divisors is an integer number (103331592).

Almost surely, 2^1205535030 is an apocalyptic number.

1205535030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1205535030 is an abundant number, since it is smaller than the sum of its proper divisors (2101075914).

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

1205535030 is a wasteful number, since it uses less digits than its factorization.

1205535030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5740660.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 1205535030 is about 34720.8155146160. The cubic root of 1205535030 is about 1064.2899099532.

Subtracting from 1205535030 its reverse (305355021), we obtain a square (900180009 = 30003²).

The spelling of 1205535030 in words is "one billion, two hundred five million, five hundred thirty-five thousand, thirty".