1156344041 has 4 divisors (see below), whose sum is σ = 1159992132. Its totient is φ = 1152695952.

The previous prime is 1156344031. The next prime is 1156344053. The reversal of 1156344041 is 1404436511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1404436511 = 23 ⋅61062457.

It can be written as a sum of positive squares in 2 ways, for example, as 587044441 + 569299600 = 24229^2 + 23860^2 .

It is a cyclic number.

It is not a de Polignac number, because 1156344041 - 2¹⁴ = 1156327657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1156343995 and 1156344013.

It is not an unprimeable number, because it can be changed into a prime (1156344031) 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, 1823570 + ... + 1824203.

It is an arithmetic number, because the mean of its divisors is an integer number (289998033).

Almost surely, 2^1156344041 is an apocalyptic number.

It is an amenable number.

1156344041 is a deficient number, since it is larger than the sum of its proper divisors (3648091).

1156344041 is an equidigital number, since it uses as much as digits as its factorization.

1156344041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3648090.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 1156344041 is about 34005.0590500884. The cubic root of 1156344041 is about 1049.6125678705.

The spelling of 1156344041 in words is "one billion, one hundred fifty-six million, three hundred forty-four thousand, forty-one".