130250505 has 32 divisors (see below), whose sum is σ = 259826688. Its totient is φ = 54129600.

The previous prime is 130250501. The next prime is 130250579. The reversal of 130250505 is 505052031.

It is not a de Polignac number, because 130250505 - 2² = 130250501 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (130250501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55231 + ... + 57540.

It is an arithmetic number, because the mean of its divisors is an integer number (8119584).

Almost surely, 2^130250505 is an apocalyptic number.

130250505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

130250505 is a deficient number, since it is larger than the sum of its proper divisors (129576183).

130250505 is a wasteful number, since it uses less digits than its factorization.

130250505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112797.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 130250505 is about 11412.7343349436. The cubic root of 130250505 is about 506.9048796650.

The spelling of 130250505 in words is "one hundred thirty million, two hundred fifty thousand, five hundred five".