130544638 has 8 divisors (see below), whose sum is σ = 223790832. Its totient is φ = 55947696.

The previous prime is 130544593. The next prime is 130544651. The reversal of 130544638 is 836445031.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4662295 + ... + 4662322.

It is an arithmetic number, because the mean of its divisors is an integer number (27973854).

Almost surely, 2^130544638 is an apocalyptic number.

130544638 is a deficient number, since it is larger than the sum of its proper divisors (93246194).

130544638 is an equidigital number, since it uses as much as digits as its factorization.

130544638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9324626.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 130544638 is about 11425.6132439357. The cubic root of 130544638 is about 507.2861587048.

Adding to 130544638 its reverse (836445031), we get a palindrome (966989669).

The spelling of 130544638 in words is "one hundred thirty million, five hundred forty-four thousand, six hundred thirty-eight".