130724286 has 96 divisors (see below), whose sum is σ = 340139520. Its totient is φ = 32746560.

The previous prime is 130724273. The next prime is 130724287. The reversal of 130724286 is 682427031.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130724287) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 146935 + ... + 147821.

It is an arithmetic number, because the mean of its divisors is an integer number (3543120).

Almost surely, 2^130724286 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130724286, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170069760).

130724286 is an abundant number, since it is smaller than the sum of its proper divisors (209415234).

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

130724286 is a wasteful number, since it uses less digits than its factorization.

130724286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950 (or 939 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 130724286 is about 11433.4721760277. The cubic root of 130724286 is about 507.5187513597.

The spelling of 130724286 in words is "one hundred thirty million, seven hundred twenty-four thousand, two hundred eighty-six".