115742145 has 8 divisors (see below), whose sum is σ = 185187456. Its totient is φ = 61729136.

The previous prime is 115742131. The next prime is 115742149. The reversal of 115742145 is 541247511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115742145 - 2¹⁴ = 115725761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115742149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3858057 + ... + 3858086.

It is an arithmetic number, because the mean of its divisors is an integer number (23148432).

Almost surely, 2^115742145 is an apocalyptic number.

115742145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115742145 is a deficient number, since it is larger than the sum of its proper divisors (69445311).

115742145 is an equidigital number, since it uses as much as digits as its factorization.

115742145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7716151.

The product of its digits is 5600, while the sum is 30.

The square root of 115742145 is about 10758.3523366731. The cubic root of 115742145 is about 487.3382606121.

Adding to 115742145 its reverse (541247511), we get a palindrome (656989656).

The spelling of 115742145 in words is "one hundred fifteen million, seven hundred forty-two thousand, one hundred forty-five".