130287733 has 4 divisors (see below), whose sum is σ = 130828588. Its totient is φ = 129746880.

The previous prime is 130287701. The next prime is 130287797. The reversal of 130287733 is 337782031.

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 85692049 + 44595684 = 9257^2 + 6678^2 .

It is a cyclic number.

It is not a de Polignac number, because 130287733 - 2⁵ = 130287701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130281733) 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, 270066 + ... + 270547.

It is an arithmetic number, because the mean of its divisors is an integer number (32707147).

Almost surely, 2^130287733 is an apocalyptic number.

It is an amenable number.

130287733 is a deficient number, since it is larger than the sum of its proper divisors (540855).

130287733 is an equidigital number, since it uses as much as digits as its factorization.

130287733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540854.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 130287733 is about 11414.3652035494. The cubic root of 130287733 is about 506.9531693236.

The spelling of 130287733 in words is "one hundred thirty million, two hundred eighty-seven thousand, seven hundred thirty-three".