130621478 has 8 divisors (see below), whose sum is σ = 211003968. Its totient is φ = 60286824.

The previous prime is 130621471. The next prime is 130621501. The reversal of 130621478 is 874126031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130621471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2511926 + ... + 2511977.

It is an arithmetic number, because the mean of its divisors is an integer number (26375496).

Almost surely, 2^130621478 is an apocalyptic number.

130621478 is a deficient number, since it is larger than the sum of its proper divisors (80382490).

130621478 is a wasteful number, since it uses less digits than its factorization.

130621478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5023918.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 130621478 is about 11428.9753696471. The cubic root of 130621478 is about 507.3856705743.

The spelling of 130621478 in words is "one hundred thirty million, six hundred twenty-one thousand, four hundred seventy-eight".