1270048409 has 4 divisors (see below), whose sum is σ = 1451483904. Its totient is φ = 1088612916.

The previous prime is 1270048397. The next prime is 1270048441. The reversal of 1270048409 is 9048400721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9048400721 = 23 ⋅393408727.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1270048409 is a prime.

It is a super-2 number, since 2×1270048409² = 3226045922406862562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1270048009) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 90717737 + ... + 90717750.

It is an arithmetic number, because the mean of its divisors is an integer number (362870976).

Almost surely, 2^1270048409 is an apocalyptic number.

It is an amenable number.

1270048409 is a deficient number, since it is larger than the sum of its proper divisors (181435495).

1270048409 is an equidigital number, since it uses as much as digits as its factorization.

1270048409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181435494.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 1270048409 is about 35637.7385505871. The cubic root of 1270048409 is about 1082.9458921484.

The spelling of 1270048409 in words is "one billion, two hundred seventy million, forty-eight thousand, four hundred nine".