115125145 has 8 divisors (see below), whose sum is σ = 138317256. Its totient is φ = 91988736.

The previous prime is 115125133. The next prime is 115125211. The reversal of 115125145 is 541521511.

It can be written as a sum of positive squares in 4 ways, for example, as 6215049 + 108910096 = 2493^2 + 10436^2 .

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 115125145 - 2¹¹ = 115123097 is a prime.

It is a super-2 number, since 2×115125145² = 26507598022542050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9232 + ... + 17761.

It is an arithmetic number, because the mean of its divisors is an integer number (17289657).

Almost surely, 2^115125145 is an apocalyptic number.

It is an amenable number.

115125145 is a deficient number, since it is larger than the sum of its proper divisors (23192111).

115125145 is an equidigital number, since it uses as much as digits as its factorization.

115125145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27851.

The product of its digits is 1000, while the sum is 25.

The square root of 115125145 is about 10729.6386239239. The cubic root of 115125145 is about 486.4707471742.

Adding to 115125145 its reverse (541521511), we get a palindrome (656646656).

The spelling of 115125145 in words is "one hundred fifteen million, one hundred twenty-five thousand, one hundred forty-five".