1308133 has 4 divisors (see below), whose sum is σ = 1385100. Its totient is φ = 1231168.

The previous prime is 1308121. The next prime is 1308137. The reversal of 1308133 is 3318031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 956484 + 351649 = 978^2 + 593^2 .

It is a cyclic number.

It is not a de Polignac number, because 1308133 - 2¹³ = 1299941 is a prime.

It is a super-2 number, since 2×1308133² = 3422423891378, which contains 22 as substring.

It is a Duffinian number.

1308133 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1308133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1308137) 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, 38458 + ... + 38491.

It is an arithmetic number, because the mean of its divisors is an integer number (346275).

2^1308133 is an apocalyptic number.

It is an amenable number.

1308133 is a deficient number, since it is larger than the sum of its proper divisors (76967).

1308133 is an equidigital number, since it uses as much as digits as its factorization.

1308133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76966.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1308133 is about 1143.7364206844. The cubic root of 1308133 is about 109.3664127136.

It can be divided in two parts, 130813 and 3, that added together give a triangular number (130816 = T₅₁₁).

The spelling of 1308133 in words is "one million, three hundred eight thousand, one hundred thirty-three".