1156641413 has 4 divisors (see below), whose sum is σ = 1157527680. Its totient is φ = 1155755148.

The previous prime is 1156641347. The next prime is 1156641433. The reversal of 1156641413 is 3141466511.

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 not a de Polignac number, because 1156641413 - 2¹⁰ = 1156640389 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1156641413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156641433) 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, 441173 + ... + 443786.

It is an arithmetic number, because the mean of its divisors is an integer number (289381920).

Almost surely, 2^1156641413 is an apocalyptic number.

It is an amenable number.

1156641413 is a deficient number, since it is larger than the sum of its proper divisors (886267).

1156641413 is an equidigital number, since it uses as much as digits as its factorization.

1156641413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886266.

The product of its digits is 8640, while the sum is 32.

The square root of 1156641413 is about 34009.4312360557. The cubic root of 1156641413 is about 1049.7025349349.

The spelling of 1156641413 in words is "one billion, one hundred fifty-six million, six hundred forty-one thousand, four hundred thirteen".