130438 has 24 divisors (see below), whose sum is σ = 250344. Its totient is φ = 50820.

The previous prime is 130423. The next prime is 130439. The reversal of 130438 is 834031.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130439) by changing a digit.

130438 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11853 + ... + 11863.

It is an arithmetic number, because the mean of its divisors is an integer number (10431).

2¹³⁰⁴³⁸ is an apocalyptic number.

130438 is a deficient number, since it is larger than the sum of its proper divisors (119906).

130438 is an equidigital number, since it uses as much as digits as its factorization.

130438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49 (or 20 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 130438 is about 361.1620135064. The cubic root of 130438 is about 50.7147992126.

Adding to 130438 its reverse (834031), we get a palindrome (964469).

The spelling of 130438 in words is "one hundred thirty thousand, four hundred thirty-eight".