1332813 has 4 divisors (see below), whose sum is σ = 1777088. Its totient is φ = 888540.

The previous prime is 1332803. The next prime is 1332823. The reversal of 1332813 is 3182331.

It is a happy number.

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: 3182331 = 3 ⋅1060777.

It is an interprime number because it is at equal distance from previous prime (1332803) and next prime (1332823).

It is not a de Polignac number, because 1332813 - 2⁴ = 1332797 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1332813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1332803) 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, 222133 + ... + 222138.

It is an arithmetic number, because the mean of its divisors is an integer number (444272).

2^1332813 is an apocalyptic number.

It is an amenable number.

1332813 is a deficient number, since it is larger than the sum of its proper divisors (444275).

1332813 is an equidigital number, since it uses as much as digits as its factorization.

1332813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444274.

The product of its digits is 432, while the sum is 21.

The square root of 1332813 is about 1154.4752054505. The cubic root of 1332813 is about 110.0499222435.

It can be divided in two parts, 1332 and 813, that added together give a triangular number (2145 = T₆₅).

The spelling of 1332813 in words is "one million, three hundred thirty-two thousand, eight hundred thirteen".