1156413 has 4 divisors (see below), whose sum is σ = 1541888. Its totient is φ = 770940.

The previous prime is 1156403. The next prime is 1156423. The reversal of 1156413 is 3146511.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3146511 = 3 ⋅1048837.

It is an interprime number because it is at equal distance from previous prime (1156403) and next prime (1156423).

It is not a de Polignac number, because 1156413 - 2⁸ = 1156157 is a prime.

It is a D-number.

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 1156413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192733 + ... + 192738.

It is an arithmetic number, because the mean of its divisors is an integer number (385472).

2^1156413 is an apocalyptic number.

It is an amenable number.

1156413 is a deficient number, since it is larger than the sum of its proper divisors (385475).

1156413 is an equidigital number, since it uses as much as digits as its factorization.

1156413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385474.

The product of its digits is 360, while the sum is 21.

The square root of 1156413 is about 1075.3664491698. The cubic root of 1156413 is about 104.9633432132.

The spelling of 1156413 in words is "one million, one hundred fifty-six thousand, four hundred thirteen".