1270505 has 8 divisors (see below), whose sum is σ = 1540032. Its totient is φ = 1006128.

The previous prime is 1270499. The next prime is 1270513. The reversal of 1270505 is 5050721.

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

It is a cyclic number.

It is not a de Polignac number, because 1270505 - 2⁶ = 1270441 is a prime.

It is a super-2 number, since 2×1270505² = 3228365910050, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 719 + ... + 1748.

It is an arithmetic number, because the mean of its divisors is an integer number (192504).

2^1270505 is an apocalyptic number.

It is an amenable number.

1270505 is a deficient number, since it is larger than the sum of its proper divisors (269527).

1270505 is a wasteful number, since it uses less digits than its factorization.

1270505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2575.

The product of its (nonzero) digits is 350, while the sum is 20.

The square root of 1270505 is about 1127.1668022081. The cubic root of 1270505 is about 108.3075652059.

The spelling of 1270505 in words is "one million, two hundred seventy thousand, five hundred five".