130724251 has 8 divisors (see below), whose sum is σ = 149543424. Its totient is φ = 111941160.

The previous prime is 130724233. The next prime is 130724261. The reversal of 130724251 is 152427031.

It is a happy number.

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 130724251 - 2⁹ = 130723739 is a prime.

It is a super-2 number, since 2×130724251² = 34177659599022002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130724261) 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, 745 + ... + 16186.

It is an arithmetic number, because the mean of its divisors is an integer number (18692928).

Almost surely, 2^130724251 is an apocalyptic number.

130724251 is a deficient number, since it is larger than the sum of its proper divisors (18819173).

130724251 is a wasteful number, since it uses less digits than its factorization.

130724251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18041.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 130724251 is about 11433.4706454340. The cubic root of 130724251 is about 507.5187060655.

The spelling of 130724251 in words is "one hundred thirty million, seven hundred twenty-four thousand, two hundred fifty-one".