115144135 has 4 divisors (see below), whose sum is σ = 138172968. Its totient is φ = 92115304.

The previous prime is 115144121. The next prime is 115144147. The reversal of 115144135 is 531441511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 531441511 = 269 ⋅1975619.

It is a cyclic number.

It is not a de Polignac number, because 115144135 - 2⁵ = 115144103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11514409 + ... + 11514418.

It is an arithmetic number, because the mean of its divisors is an integer number (34543242).

Almost surely, 2^115144135 is an apocalyptic number.

115144135 is a deficient number, since it is larger than the sum of its proper divisors (23028833).

115144135 is an equidigital number, since it uses as much as digits as its factorization.

115144135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23028832.

The product of its digits is 1200, while the sum is 25.

The square root of 115144135 is about 10730.5235193815. The cubic root of 115144135 is about 486.4974936380.

Adding to 115144135 its reverse (531441511), we get a palindrome (646585646).

The spelling of 115144135 in words is "one hundred fifteen million, one hundred forty-four thousand, one hundred thirty-five".