130021734 has 16 divisors (see below), whose sum is σ = 260331120. Its totient is φ = 43292640.

The previous prime is 130021733. The next prime is 130021747. The reversal of 130021734 is 437120031.

It is a self number, because there is not a number n which added to its sum of digits gives 130021734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130021733) 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, 5869 + ... + 17160.

It is an arithmetic number, because the mean of its divisors is an integer number (16270695).

Almost surely, 2^130021734 is an apocalyptic number.

130021734 is an abundant number, since it is smaller than the sum of its proper divisors (130309386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130021734 is a wasteful number, since it uses less digits than its factorization.

130021734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23975.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 130021734 is about 11402.7073101084. The cubic root of 130021734 is about 506.6079311145.

Adding to 130021734 its reverse (437120031), we get a palindrome (567141765).

The spelling of 130021734 in words is "one hundred thirty million, twenty-one thousand, seven hundred thirty-four".