1256234041 has 4 divisors (see below), whose sum is σ = 1268430592. Its totient is φ = 1244037492.

The previous prime is 1256234029. The next prime is 1256234051. The reversal of 1256234041 is 1404326521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1256234041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1256234051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6098121 + ... + 6098326.

It is an arithmetic number, because the mean of its divisors is an integer number (317107648).

Almost surely, 2^1256234041 is an apocalyptic number.

It is an amenable number.

1256234041 is a deficient number, since it is larger than the sum of its proper divisors (12196551).

1256234041 is a wasteful number, since it uses less digits than its factorization.

1256234041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12196550.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 1256234041 is about 35443.3920639659. The cubic root of 1256234041 is about 1079.0051541202.

The spelling of 1256234041 in words is "one billion, two hundred fifty-six million, two hundred thirty-four thousand, forty-one".