130421755 has 4 divisors (see below), whose sum is σ = 156506112. Its totient is φ = 104337400.

The previous prime is 130421747. The next prime is 130421771. The reversal of 130421755 is 557124031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 557124031 = 41 ⋅13588391.

It is not a de Polignac number, because 130421755 - 2³ = 130421747 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 13042171 + ... + 13042180.

It is an arithmetic number, because the mean of its divisors is an integer number (39126528).

Almost surely, 2^130421755 is an apocalyptic number.

130421755 is a deficient number, since it is larger than the sum of its proper divisors (26084357).

130421755 is an equidigital number, since it uses as much as digits as its factorization.

130421755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26084356.

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

The square root of 130421755 is about 11420.2344546861. The cubic root of 130421755 is about 507.1269375228.

Adding to 130421755 its reverse (557124031), we get a palindrome (687545786).

The spelling of 130421755 in words is "one hundred thirty million, four hundred twenty-one thousand, seven hundred fifty-five".