130720106 has 16 divisors (see below), whose sum is σ = 226488960. Its totient is φ = 55922880.

The previous prime is 130720097. The next prime is 130720153. The reversal of 130720106 is 601027031.

It is a happy number.

It is a super-2 number, since 2×130720106² = 34175492225302472, which contains 22 as substring.

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, 174386 + ... + 175133.

It is an arithmetic number, because the mean of its divisors is an integer number (14155560).

Almost surely, 2^130720106 is an apocalyptic number.

130720106 is a deficient number, since it is larger than the sum of its proper divisors (95768854).

130720106 is a wasteful number, since it uses less digits than its factorization.

130720106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349549.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 130720106 is about 11433.2893779524. The cubic root of 130720106 is about 507.5133418803.

Adding to 130720106 its reverse (601027031), we get a palindrome (731747137).

The spelling of 130720106 in words is "one hundred thirty million, seven hundred twenty thousand, one hundred six".