1205313510 has 16 divisors (see below), whose sum is σ = 2892752496. Its totient is φ = 321416928.

The previous prime is 1205313491. The next prime is 1205313523. The reversal of 1205313510 is 153135021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20088529 + ... + 20088588.

It is an arithmetic number, because the mean of its divisors is an integer number (180797031).

Almost surely, 2^1205313510 is an apocalyptic number.

1205313510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1205313510 is an abundant number, since it is smaller than the sum of its proper divisors (1687438986).

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

1205313510 is a wasteful number, since it uses less digits than its factorization.

1205313510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40177127.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 1205313510 is about 34717.6253508214. The cubic root of 1205313510 is about 1064.2247173383.

Adding to 1205313510 its reverse (153135021), we get a palindrome (1358448531).

The spelling of 1205313510 in words is "one billion, two hundred five million, three hundred thirteen thousand, five hundred ten".