130100785 has 4 divisors (see below), whose sum is σ = 156120948. Its totient is φ = 104080624.

The previous prime is 130100783. The next prime is 130100797. The reversal of 130100785 is 587001031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 587001031 = 139 ⋅4223029.

It can be written as a sum of positive squares in 2 ways, for example, as 84713616 + 45387169 = 9204^2 + 6737^2 .

It is a cyclic number.

It is not a de Polignac number, because 130100785 - 2¹ = 130100783 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130100783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13010074 + ... + 13010083.

It is an arithmetic number, because the mean of its divisors is an integer number (39030237).

Almost surely, 2^130100785 is an apocalyptic number.

It is an amenable number.

130100785 is a deficient number, since it is larger than the sum of its proper divisors (26020163).

130100785 is an equidigital number, since it uses as much as digits as its factorization.

130100785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26020162.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 130100785 is about 11406.1731093299. The cubic root of 130100785 is about 506.7105799793.

The spelling of 130100785 in words is "one hundred thirty million, one hundred thousand, seven hundred eighty-five".