1270851 has 4 divisors (see below), whose sum is σ = 1694472. Its totient is φ = 847232.

The previous prime is 1270849. The next prime is 1270859. The reversal of 1270851 is 1580721.

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 1270851 - 2¹ = 1270849 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (1270859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211806 + ... + 211811.

It is an arithmetic number, because the mean of its divisors is an integer number (423618).

2^1270851 is an apocalyptic number.

1270851 is a deficient number, since it is larger than the sum of its proper divisors (423621).

1270851 is an equidigital number, since it uses as much as digits as its factorization.

1270851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423620.

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 1270851 is about 1127.3202739240. The cubic root of 1270851 is about 108.3173962092.

The spelling of 1270851 in words is "one million, two hundred seventy thousand, eight hundred fifty-one".