115542340 has 24 divisors (see below), whose sum is σ = 253189440. Its totient is φ = 44207328.

The previous prime is 115542313. The next prime is 115542373. The reversal of 115542340 is 43245511.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 125130 + ... + 126049.

It is an arithmetic number, because the mean of its divisors is an integer number (10549560).

Almost surely, 2^115542340 is an apocalyptic number.

115542340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115542340 is an abundant number, since it is smaller than the sum of its proper divisors (137647100).

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

115542340 is a wasteful number, since it uses less digits than its factorization.

115542340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251211 (or 251209 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 115542340 is about 10749.0622846833. The cubic root of 115542340 is about 487.0576693425.

Adding to 115542340 its reverse (43245511), we get a palindrome (158787851).

The spelling of 115542340 in words is "one hundred fifteen million, five hundred forty-two thousand, three hundred forty".