1255280671 has 4 divisors (see below), whose sum is σ = 1259748144. Its totient is φ = 1250813200.

The previous prime is 1255280659. The next prime is 1255280707. The reversal of 1255280671 is 1760825521.

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 1255280671 - 2²³ = 1246892063 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1255280671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255280171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2233315 + ... + 2233876.

It is an arithmetic number, because the mean of its divisors is an integer number (314937036).

Almost surely, 2^1255280671 is an apocalyptic number.

1255280671 is a deficient number, since it is larger than the sum of its proper divisors (4467473).

1255280671 is an equidigital number, since it uses as much as digits as its factorization.

1255280671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4467472.

The product of its (nonzero) digits is 33600, while the sum is 37.

The square root of 1255280671 is about 35429.9403188885. The cubic root of 1255280671 is about 1078.7321286996.

The spelling of 1255280671 in words is "one billion, two hundred fifty-five million, two hundred eighty thousand, six hundred seventy-one".