130505478 has 16 divisors (see below), whose sum is σ = 262163520. Its totient is φ = 43309736.

The previous prime is 130505467. The next prime is 130505489. The reversal of 130505478 is 874505031.

It is an interprime number because it is at equal distance from previous prime (130505467) and next prime (130505489).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46548 + ... + 49271.

It is an arithmetic number, because the mean of its divisors is an integer number (16385220).

Almost surely, 2^130505478 is an apocalyptic number.

130505478 is an abundant number, since it is smaller than the sum of its proper divisors (131658042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130505478 is a wasteful number, since it uses less digits than its factorization.

130505478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96051.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 130505478 is about 11423.8994218262. The cubic root of 130505478 is about 507.2354294090.

It can be divided in two parts, 13050 and 5478, that added together give a triangular number (18528 = T₁₉₂).

The spelling of 130505478 in words is "one hundred thirty million, five hundred five thousand, four hundred seventy-eight".