130720602 has 24 divisors (see below), whose sum is σ = 267685344. Its totient is φ = 42556584.

The previous prime is 130720573. The next prime is 130720609. The reversal of 130720602 is 206027031.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130720609) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5203 + ... + 16985.

It is an arithmetic number, because the mean of its divisors is an integer number (11153556).

Almost surely, 2^130720602 is an apocalyptic number.

130720602 is an abundant number, since it is smaller than the sum of its proper divisors (136964742).

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

130720602 is a wasteful number, since it uses less digits than its factorization.

130720602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11874 (or 11831 counting only the distinct ones).

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

The square root of 130720602 is about 11433.3110689774. The cubic root of 130720602 is about 507.5139837767.

Adding to 130720602 its reverse (206027031), we get a palindrome (336747633).

The spelling of 130720602 in words is "one hundred thirty million, seven hundred twenty thousand, six hundred two".