1273881 has 8 divisors (see below), whose sum is σ = 1941184. Its totient is φ = 727920.

The previous prime is 1273879. The next prime is 1273889. The reversal of 1273881 is 1883721.

It is a happy number.

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

It is not a de Polignac number, because 1273881 - 2¹ = 1273879 is a prime.

It is a super-2 number, since 2×1273881² = 3245545604322, which contains 22 as substring.

1273881 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1273889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30310 + ... + 30351.

It is an arithmetic number, because the mean of its divisors is an integer number (242648).

2^1273881 is an apocalyptic number.

It is an amenable number.

1273881 is a deficient number, since it is larger than the sum of its proper divisors (667303).

1273881 is an equidigital number, since it uses as much as digits as its factorization.

1273881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60671.

The product of its digits is 2688, while the sum is 30.

The square root of 1273881 is about 1128.6633687686. The cubic root of 1273881 is about 108.4034123824.

The spelling of 1273881 in words is "one million, two hundred seventy-three thousand, eight hundred eighty-one".