130021534 has 8 divisors (see below), whose sum is σ = 195087168. Its totient is φ = 64992480.

The previous prime is 130021523. The next prime is 130021547. The reversal of 130021534 is 435120031.

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, 2934 + ... + 16390.

It is an arithmetic number, because the mean of its divisors is an integer number (24385896).

Almost surely, 2^130021534 is an apocalyptic number.

130021534 is a deficient number, since it is larger than the sum of its proper divisors (65065634).

130021534 is a wasteful number, since it uses less digits than its factorization.

130021534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18290.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 130021534 is about 11402.6985402579. The cubic root of 130021534 is about 506.6076713589.

Adding to 130021534 its reverse (435120031), we get a palindrome (565141565).

The spelling of 130021534 in words is "one hundred thirty million, twenty-one thousand, five hundred thirty-four".