1260270215 has 4 divisors (see below), whose sum is σ = 1512324264. Its totient is φ = 1008216168.

The previous prime is 1260270191. The next prime is 1260270229. The reversal of 1260270215 is 5120720621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1260270215 - 2¹⁰ = 1260269191 is a prime.

It is a super-2 number, since 2×1260270215² = 3176562029632292450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126027017 + ... + 126027026.

It is an arithmetic number, because the mean of its divisors is an integer number (378081066).

Almost surely, 2^1260270215 is an apocalyptic number.

1260270215 is a deficient number, since it is larger than the sum of its proper divisors (252054049).

1260270215 is an equidigital number, since it uses as much as digits as its factorization.

1260270215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252054048.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 1260270215 is about 35500.2847171681. The cubic root of 1260270215 is about 1080.1595029054.

Adding to 1260270215 its reverse (5120720621), we get a palindrome (6380990836).

The spelling of 1260270215 in words is "one billion, two hundred sixty million, two hundred seventy thousand, two hundred fifteen".