130903133 has 4 divisors (see below), whose sum is σ = 133049148. Its totient is φ = 128757120.

The previous prime is 130903121. The next prime is 130903139. The reversal of 130903133 is 331309031.

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 63712324 + 67190809 = 7982^2 + 8197^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130903133 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 = 130903099 and 130903108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130903139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1072916 + ... + 1073037.

It is an arithmetic number, because the mean of its divisors is an integer number (33262287).

Almost surely, 2^130903133 is an apocalyptic number.

It is an amenable number.

130903133 is a deficient number, since it is larger than the sum of its proper divisors (2146015).

130903133 is an equidigital number, since it uses as much as digits as its factorization.

130903133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2146014.

The product of its (nonzero) digits is 729, while the sum is 23.

The square root of 130903133 is about 11441.2907051608. The cubic root of 130903133 is about 507.7500953746.

The spelling of 130903133 in words is "one hundred thirty million, nine hundred three thousand, one hundred thirty-three".