115551420 has 24 divisors (see below), whose sum is σ = 323544144. Its totient is φ = 30813696.

The previous prime is 115551413. The next prime is 115551421. The reversal of 115551420 is 24155511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115551421) 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, 962869 + ... + 962988.

It is an arithmetic number, because the mean of its divisors is an integer number (13481006).

Almost surely, 2^115551420 is an apocalyptic number.

115551420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115551420 is an abundant number, since it is smaller than the sum of its proper divisors (207992724).

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

115551420 is a wasteful number, since it uses less digits than its factorization.

115551420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1925869 (or 1925867 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 115551420 is about 10749.4846388094. The cubic root of 115551420 is about 487.0704276318.

The spelling of 115551420 in words is "one hundred fifteen million, five hundred fifty-one thousand, four hundred twenty".