115502140 has 96 divisors (see below), whose sum is σ = 278853120. Its totient is φ = 39833856.

The previous prime is 115502137. The next prime is 115502141. The reversal of 115502140 is 41205511.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115502141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 508707 + ... + 508933.

It is an arithmetic number, because the mean of its divisors is an integer number (2904720).

Almost surely, 2^115502140 is an apocalyptic number.

115502140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115502140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139426560).

115502140 is an abundant number, since it is smaller than the sum of its proper divisors (163350980).

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

115502140 is a wasteful number, since it uses less digits than its factorization.

115502140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371 (or 369 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 115502140 is about 10747.1921914517. The cubic root of 115502140 is about 487.0011763735.

Adding to 115502140 its reverse (41205511), we get a palindrome (156707651).

The spelling of 115502140 in words is "one hundred fifteen million, five hundred two thousand, one hundred forty".