130605031 has 4 divisors (see below), whose sum is σ = 137479000. Its totient is φ = 123731064.

The previous prime is 130605029. The next prime is 130605037. The reversal of 130605031 is 130506031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130506031 = 97 ⋅1345423.

It is a cyclic number.

It is not a de Polignac number, because 130605031 - 2¹ = 130605029 is a prime.

It is a super-2 number, since 2×130605031² = 34115348245021922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 6873949 = 130605031 / (1 + 3 + 0 + 6 + 0 + 5 + 0 + 3 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130605037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3436956 + ... + 3436993.

It is an arithmetic number, because the mean of its divisors is an integer number (34369750).

Almost surely, 2^130605031 is an apocalyptic number.

130605031 is a deficient number, since it is larger than the sum of its proper divisors (6873969).

130605031 is an equidigital number, since it uses as much as digits as its factorization.

130605031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6873968.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 130605031 is about 11428.2558161777. The cubic root of 130605031 is about 507.3643741216.

The spelling of 130605031 in words is "one hundred thirty million, six hundred five thousand, thirty-one".