115142250 has 32 divisors (see below), whose sum is σ = 287396928. Its totient is φ = 30704400.

The previous prime is 115142231. The next prime is 115142257. The reversal of 115142250 is 52241511.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (115142257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76012 + ... + 77511.

It is an arithmetic number, because the mean of its divisors is an integer number (8981154).

Almost surely, 2^115142250 is an apocalyptic number.

115142250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115142250 is an abundant number, since it is smaller than the sum of its proper divisors (172254678).

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

115142250 is a wasteful number, since it uses less digits than its factorization.

115142250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153543 (or 153533 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 115142250 is about 10730.4356854696. The cubic root of 115142250 is about 486.4948388414.

Adding to 115142250 its reverse (52241511), we get a palindrome (167383761).

The spelling of 115142250 in words is "one hundred fifteen million, one hundred forty-two thousand, two hundred fifty".