130642033 has 4 divisors (see below), whose sum is σ = 130693860. Its totient is φ = 130590208.

The previous prime is 130642021. The next prime is 130642073. The reversal of 130642033 is 330246031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 330246031 = 1297 ⋅254623.

It can be written as a sum of positive squares in 2 ways, for example, as 87385104 + 43256929 = 9348^2 + 6577^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130642033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130641995 and 130642013.

It is not an unprimeable number, because it can be changed into a prime (130642073) 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, 21928 + ... + 27241.

It is an arithmetic number, because the mean of its divisors is an integer number (32673465).

Almost surely, 2^130642033 is an apocalyptic number.

It is an amenable number.

130642033 is a deficient number, since it is larger than the sum of its proper divisors (51827).

130642033 is an equidigital number, since it uses as much as digits as its factorization.

130642033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51826.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 130642033 is about 11429.8745837389. The cubic root of 130642033 is about 507.4122837715.

Adding to 130642033 its reverse (330246031), we get a palindrome (460888064).

The spelling of 130642033 in words is "one hundred thirty million, six hundred forty-two thousand, thirty-three".