130144421 has 8 divisors (see below), whose sum is σ = 143303904. Its totient is φ = 117206320.

The previous prime is 130144409. The next prime is 130144423. The reversal of 130144421 is 124441031.

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

It is not a de Polignac number, because 130144421 - 2¹⁰ = 130143397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130144393 and 130144402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130144423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54110 + ... + 56463.

It is an arithmetic number, because the mean of its divisors is an integer number (17912988).

Almost surely, 2^130144421 is an apocalyptic number.

130144421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

130144421 is a deficient number, since it is larger than the sum of its proper divisors (13159483).

130144421 is a wasteful number, since it uses less digits than its factorization.

130144421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110691.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 130144421 is about 11408.0857728192. The cubic root of 130144421 is about 506.7672241451.

Adding to 130144421 its reverse (124441031), we get a palindrome (254585452).

The spelling of 130144421 in words is "one hundred thirty million, one hundred forty-four thousand, four hundred twenty-one".