1255267671 has 8 divisors (see below), whose sum is σ = 1912788864. Its totient is φ = 717295800.

The previous prime is 1255267627. The next prime is 1255267679. The reversal of 1255267671 is 1767625521.

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 1255267671 - 2²³ = 1246879063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255267679) 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, 29887305 + ... + 29887346.

It is an arithmetic number, because the mean of its divisors is an integer number (239098608).

Almost surely, 2^1255267671 is an apocalyptic number.

1255267671 is a deficient number, since it is larger than the sum of its proper divisors (657521193).

1255267671 is an equidigital number, since it uses as much as digits as its factorization.

1255267671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59774661.

The product of its digits is 176400, while the sum is 42.

The square root of 1255267671 is about 35429.7568577601. The cubic root of 1255267671 is about 1078.7284048137.

The spelling of 1255267671 in words is "one billion, two hundred fifty-five million, two hundred sixty-seven thousand, six hundred seventy-one".