1241256047 has 8 divisors (see below), whose sum is σ = 1254794112. Its totient is φ = 1227779800.

The previous prime is 1241256043. The next prime is 1241256059. The reversal of 1241256047 is 7406521421.

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

It is a cyclic number.

It is not a de Polignac number, because 1241256047 - 2² = 1241256043 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 (1241256043) 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, 25508 + ... + 55974.

It is an arithmetic number, because the mean of its divisors is an integer number (156849264).

Almost surely, 2^1241256047 is an apocalyptic number.

1241256047 is a deficient number, since it is larger than the sum of its proper divisors (13538065).

1241256047 is a wasteful number, since it uses less digits than its factorization.

1241256047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30909.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 1241256047 is about 35231.4638781871. The cubic root of 1241256047 is about 1074.6996953127.

Adding to 1241256047 its reverse (7406521421), we get a palindrome (8647777468).

The spelling of 1241256047 in words is "one billion, two hundred forty-one million, two hundred fifty-six thousand, forty-seven".