1205352015 has 16 divisors (see below), whose sum is σ = 2204072448. Its totient is φ = 551018016.

The previous prime is 1205351999. The next prime is 1205352061. The reversal of 1205352015 is 5102535021.

It is a happy number.

It is not a de Polignac number, because 1205352015 - 2⁴ = 1205351999 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5739667 + ... + 5739876.

It is an arithmetic number, because the mean of its divisors is an integer number (137754528).

Almost surely, 2^1205352015 is an apocalyptic number.

1205352015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1205352015 is a deficient number, since it is larger than the sum of its proper divisors (998720433).

1205352015 is a wasteful number, since it uses less digits than its factorization.

1205352015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11479558.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 1205352015 is about 34718.1798918088. The cubic root of 1205352015 is about 1064.2360498080.

Adding to 1205352015 its reverse (5102535021), we get a palindrome (6307887036).

It can be divided in two parts, 1205 and 352015, that added together give a triangular number (353220 = T₈₄₀).

The spelling of 1205352015 in words is "one billion, two hundred five million, three hundred fifty-two thousand, fifteen".