130020733 has 4 divisors (see below), whose sum is σ = 130071708. Its totient is φ = 129969760.

The previous prime is 130020731. The next prime is 130020769. The reversal of 130020733 is 337020031.

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 54730404 + 75290329 = 7398^2 + 8677^2 .

It is a cyclic number.

It is not a de Polignac number, because 130020733 - 2¹ = 130020731 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 130020733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130020731) 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, 21448 + ... + 26833.

It is an arithmetic number, because the mean of its divisors is an integer number (32517927).

Almost surely, 2^130020733 is an apocalyptic number.

It is an amenable number.

130020733 is a deficient number, since it is larger than the sum of its proper divisors (50975).

130020733 is an equidigital number, since it uses as much as digits as its factorization.

130020733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50974.

The product of its (nonzero) digits is 378, while the sum is 19.

The square root of 130020733 is about 11402.6634169390. The cubic root of 130020733 is about 506.6066310349.

Adding to 130020733 its reverse (337020031), we get a palindrome (467040764).

The spelling of 130020733 in words is "one hundred thirty million, twenty thousand, seven hundred thirty-three".