115001020 has 12 divisors (see below), whose sum is σ = 241502184. Its totient is φ = 46000400.

The previous prime is 115001017. The next prime is 115001027. The reversal of 115001020 is 20100511.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 115000988 and 115001006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115001027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2875006 + ... + 2875045.

It is an arithmetic number, because the mean of its divisors is an integer number (20125182).

Almost surely, 2^115001020 is an apocalyptic number.

115001020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115001020 is an abundant number, since it is smaller than the sum of its proper divisors (126501164).

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

115001020 is a wasteful number, since it uses less digits than its factorization.

115001020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5750060 (or 5750058 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 10.

The square root of 115001020 is about 10723.8528524034. The cubic root of 115001020 is about 486.2958508452.

Adding to 115001020 its reverse (20100511), we get a palindrome (135101531).

The spelling of 115001020 in words is "one hundred fifteen million, one thousand, twenty".