1205002015 has 16 divisors (see below), whose sum is σ = 1653162048. Its totient is φ = 825993216.

The previous prime is 1205002009. The next prime is 1205002031. The reversal of 1205002015 is 5102005021.

It is a cyclic number.

It is not a de Polignac number, because 1205002015 - 2⁷ = 1205001887 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1205002015.

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, 149119 + ... + 156991.

It is an arithmetic number, because the mean of its divisors is an integer number (103322628).

Almost surely, 2^1205002015 is an apocalyptic number.

1205002015 is a deficient number, since it is larger than the sum of its proper divisors (448160033).

1205002015 is an equidigital number, since it uses as much as digits as its factorization.

1205002015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12258.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 1205002015 is about 34713.1389390242. The cubic root of 1205002015 is about 1064.1330318593.

Adding to 1205002015 its reverse (5102005021), we get a palindrome (6307007036).

The spelling of 1205002015 in words is "one billion, two hundred five million, two thousand, fifteen".