1241270887 has 4 divisors (see below), whose sum is σ = 1249491376. Its totient is φ = 1233050400.

The previous prime is 1241270869. The next prime is 1241270897. The reversal of 1241270887 is 7880721421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7880721421 = 53 ⋅148692857.

It is a cyclic number.

It is not a de Polignac number, because 1241270887 - 2¹¹ = 1241268839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241270897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4110018 + ... + 4110319.

It is an arithmetic number, because the mean of its divisors is an integer number (312372844).

Almost surely, 2^1241270887 is an apocalyptic number.

1241270887 is a deficient number, since it is larger than the sum of its proper divisors (8220489).

1241270887 is an equidigital number, since it uses as much as digits as its factorization.

1241270887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8220488.

The product of its (nonzero) digits is 50176, while the sum is 40.

The square root of 1241270887 is about 35231.6744847587. The cubic root of 1241270887 is about 1074.7039782002.

The spelling of 1241270887 in words is "one billion, two hundred forty-one million, two hundred seventy thousand, eight hundred eighty-seven".