130243251 has 8 divisors (see below), whose sum is σ = 177352704. Its totient is φ = 84981320.

The previous prime is 130243249. The next prime is 130243261. The reversal of 130243251 is 152342031.

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

It is a cyclic number.

It is not a de Polignac number, because 130243251 - 2¹ = 130243249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130243241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 461715 + ... + 461996.

It is an arithmetic number, because the mean of its divisors is an integer number (22169088).

Almost surely, 2^130243251 is an apocalyptic number.

130243251 is a deficient number, since it is larger than the sum of its proper divisors (47109453).

130243251 is an equidigital number, since it uses as much as digits as its factorization.

130243251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923761.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 130243251 is about 11412.4165276246. The cubic root of 130243251 is about 506.8954691928.

Adding to 130243251 its reverse (152342031), we get a palindrome (282585282).

The spelling of 130243251 in words is "one hundred thirty million, two hundred forty-three thousand, two hundred fifty-one".