130673531 has 4 divisors (see below), whose sum is σ = 130715232. Its totient is φ = 130631832.

The previous prime is 130673479. The next prime is 130673561. The reversal of 130673531 is 135376031.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130673531 is a prime.

It is a super-2 number, since 2×130673531² = 34151143408015922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130673494 and 130673503.

It is not an unprimeable number, because it can be changed into a prime (130673561) 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, 15731 + ... + 22556.

It is an arithmetic number, because the mean of its divisors is an integer number (32678808).

Almost surely, 2^130673531 is an apocalyptic number.

130673531 is a deficient number, since it is larger than the sum of its proper divisors (41701).

130673531 is an equidigital number, since it uses as much as digits as its factorization.

130673531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41700.

The product of its (nonzero) digits is 5670, while the sum is 29.

The square root of 130673531 is about 11431.2523810823. The cubic root of 130673531 is about 507.4530597950.

The spelling of 130673531 in words is "one hundred thirty million, six hundred seventy-three thousand, five hundred thirty-one".