130421256 has 32 divisors (see below), whose sum is σ = 372632640. Its totient is φ = 37263168.

The previous prime is 130421243. The next prime is 130421273. The reversal of 130421256 is 652124031.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 387991 + ... + 388326.

It is an arithmetic number, because the mean of its divisors is an integer number (11644770).

Almost surely, 2^130421256 is an apocalyptic number.

It is an amenable number.

130421256 is an abundant number, since it is smaller than the sum of its proper divisors (242211384).

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

130421256 is a wasteful number, since it uses less digits than its factorization.

130421256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776333 (or 776329 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 130421256 is about 11420.2126074780. The cubic root of 130421256 is about 507.1262907578.

Adding to 130421256 its reverse (652124031), we get a palindrome (782545287).

The spelling of 130421256 in words is "one hundred thirty million, four hundred twenty-one thousand, two hundred fifty-six".