130213730 has 16 divisors (see below), whose sum is σ = 240720120. Its totient is φ = 50677632.

The previous prime is 130213717. The next prime is 130213747. The reversal of 130213730 is 37312031.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 116143729 + 14070001 = 10777^2 + 3751^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175595 + ... + 176334.

Almost surely, 2^130213730 is an apocalyptic number.

130213730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130213730 is a deficient number, since it is larger than the sum of its proper divisors (110506390).

130213730 is a wasteful number, since it uses less digits than its factorization.

130213730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351973.

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 130213730 is about 11411.1230823263. The cubic root of 130213730 is about 506.8571685726.

Adding to 130213730 its reverse (37312031), we get a palindrome (167525761).

The spelling of 130213730 in words is "one hundred thirty million, two hundred thirteen thousand, seven hundred thirty".