130786523 has 4 divisors (see below), whose sum is σ = 149470320. Its totient is φ = 112102728.

The previous prime is 130786517. The next prime is 130786531. The reversal of 130786523 is 325687031.

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

It is a cyclic number.

It is not a de Polignac number, because 130786523 - 2⁸ = 130786267 is a prime.

It is a super-2 number, since 2×130786523² = 34210229196859058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130786543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9341888 + ... + 9341901.

It is an arithmetic number, because the mean of its divisors is an integer number (37367580).

Almost surely, 2^130786523 is an apocalyptic number.

130786523 is a deficient number, since it is larger than the sum of its proper divisors (18683797).

130786523 is an equidigital number, since it uses as much as digits as its factorization.

130786523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18683796.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 130786523 is about 11436.1935538010. The cubic root of 130786523 is about 507.5992807296.

The spelling of 130786523 in words is "one hundred thirty million, seven hundred eighty-six thousand, five hundred twenty-three".