130521734 has 16 divisors (see below), whose sum is σ = 233480448. Its totient is φ = 53505672.

The previous prime is 130521731. The next prime is 130521763. The reversal of 130521734 is 437125031.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130521731) 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, 202352 + ... + 202995.

It is an arithmetic number, because the mean of its divisors is an integer number (14592528).

Almost surely, 2^130521734 is an apocalyptic number.

130521734 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

130521734 is a deficient number, since it is larger than the sum of its proper divisors (102958714).

130521734 is a wasteful number, since it uses less digits than its factorization.

130521734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405379.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 130521734 is about 11424.6108905293. The cubic root of 130521734 is about 507.2564892576.

Adding to 130521734 its reverse (437125031), we get a palindrome (567646765).

The spelling of 130521734 in words is "one hundred thirty million, five hundred twenty-one thousand, seven hundred thirty-four".