115857485 has 4 divisors (see below), whose sum is σ = 139028988. Its totient is φ = 92685984.

The previous prime is 115857481. The next prime is 115857487. The reversal of 115857485 is 584758511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13564489 + 102292996 = 3683^2 + 10114^2 .

It is a cyclic number.

It is not a de Polignac number, because 115857485 - 2² = 115857481 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115857481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11585744 + ... + 11585753.

It is an arithmetic number, because the mean of its divisors is an integer number (34757247).

Almost surely, 2^115857485 is an apocalyptic number.

It is an amenable number.

115857485 is a deficient number, since it is larger than the sum of its proper divisors (23171503).

115857485 is an equidigital number, since it uses as much as digits as its factorization.

115857485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23171502.

The product of its digits is 224000, while the sum is 44.

The square root of 115857485 is about 10763.7114881439. The cubic root of 115857485 is about 487.5000885382.

The spelling of 115857485 in words is "one hundred fifteen million, eight hundred fifty-seven thousand, four hundred eighty-five".