115430020 has 12 divisors (see below), whose sum is σ = 242403084. Its totient is φ = 46172000.

The previous prime is 115429991. The next prime is 115430027. The reversal of 115430020 is 20034511.

It can be written as a sum of positive squares in 2 ways, for example, as 70593604 + 44836416 = 8402^2 + 6696^2 .

It is a junction number, because it is equal to n+sod(n) for n = 115429976 and 115430003.

It is not an unprimeable number, because it can be changed into a prime (115430027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2885731 + ... + 2885770.

It is an arithmetic number, because the mean of its divisors is an integer number (20200257).

Almost surely, 2^115430020 is an apocalyptic number.

115430020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115430020 is an abundant number, since it is smaller than the sum of its proper divisors (126973064).

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

115430020 is a wasteful number, since it uses less digits than its factorization.

115430020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5771510 (or 5771508 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 115430020 is about 10743.8363725440. The cubic root of 115430020 is about 486.8997934393.

Adding to 115430020 its reverse (20034511), we get a palindrome (135464531).

The spelling of 115430020 in words is "one hundred fifteen million, four hundred thirty thousand, twenty".