130475521 has 4 divisors (see below), whose sum is σ = 142336944. Its totient is φ = 118614100.

The previous prime is 130475519. The next prime is 130475549. The reversal of 130475521 is 125574031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 130475521 - 2¹ = 130475519 is a prime.

It is a super-3 number, since 3×130475521³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130475521.

It is not an unprimeable number, because it can be changed into a prime (130475551) 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, 5930695 + ... + 5930716.

It is an arithmetic number, because the mean of its divisors is an integer number (35584236).

Almost surely, 2^130475521 is an apocalyptic number.

130475521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

130475521 is a deficient number, since it is larger than the sum of its proper divisors (11861423).

130475521 is a wasteful number, since it uses less digits than its factorization.

130475521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11861422.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 130475521 is about 11422.5881918241. The cubic root of 130475521 is about 507.1966151646.

The spelling of 130475521 in words is "one hundred thirty million, four hundred seventy-five thousand, five hundred twenty-one".