1205328515 has 8 divisors (see below), whose sum is σ = 1493052288. Its totient is φ = 933157440.

The previous prime is 1205328493. The next prime is 1205328521. The reversal of 1205328515 is 5158235021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1205328515 - 2⁶ = 1205328451 is a prime.

It is a Duffinian 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, 3888002 + ... + 3888311.

It is an arithmetic number, because the mean of its divisors is an integer number (186631536).

Almost surely, 2^1205328515 is an apocalyptic number.

1205328515 is a deficient number, since it is larger than the sum of its proper divisors (287723773).

1205328515 is an equidigital number, since it uses as much as digits as its factorization.

1205328515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7776349.

The product of its (nonzero) digits is 12000, while the sum is 32.

The square root of 1205328515 is about 34717.8414507584. The cubic root of 1205328515 is about 1064.2291335131.

The spelling of 1205328515 in words is "one billion, two hundred five million, three hundred twenty-eight thousand, five hundred fifteen".