130144531 has 8 divisors (see below), whose sum is σ = 145278144. Its totient is φ = 115561320.

The previous prime is 130144529. The next prime is 130144559. The reversal of 130144531 is 135441031.

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

It is a cyclic number.

It is not a de Polignac number, because 130144531 - 2¹ = 130144529 is a prime.

It is a super-2 number, since 2×130144531² = 33875197898419922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (130144591) 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, 137101 + ... + 138046.

It is an arithmetic number, because the mean of its divisors is an integer number (18159768).

Almost surely, 2^130144531 is an apocalyptic number.

130144531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

130144531 is a deficient number, since it is larger than the sum of its proper divisors (15133613).

130144531 is a wasteful number, since it uses less digits than its factorization.

130144531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275201.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 130144531 is about 11408.0905939601. The cubic root of 130144531 is about 506.7673669208.

Adding to 130144531 its reverse (135441031), we get a palindrome (265585562).

The spelling of 130144531 in words is "one hundred thirty million, one hundred forty-four thousand, five hundred thirty-one".