130232437 has 8 divisors (see below), whose sum is σ = 131967000. Its totient is φ = 128507904.

The previous prime is 130232357. The next prime is 130232447. The reversal of 130232437 is 734232031.

It can be written as a sum of positive squares in 4 ways, for example, as 107868996 + 22363441 = 10386^2 + 4729^2 .

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 130232437 - 2⁷ = 130232309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130232447) 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, 25689 + ... + 30337.

It is an arithmetic number, because the mean of its divisors is an integer number (16495875).

Almost surely, 2^130232437 is an apocalyptic number.

It is an amenable number.

130232437 is a deficient number, since it is larger than the sum of its proper divisors (1734563).

130232437 is a wasteful number, since it uses less digits than its factorization.

130232437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5015.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 130232437 is about 11411.9427355731. The cubic root of 130232437 is about 506.8814397536.

Adding to 130232437 its reverse (734232031), we get a palindrome (864464468).

The spelling of 130232437 in words is "one hundred thirty million, two hundred thirty-two thousand, four hundred thirty-seven".