115647489 has 6 divisors (see below), whose sum is σ = 167046386. Its totient is φ = 77098320.

The previous prime is 115647487. The next prime is 115647491. The reversal of 115647489 is 984746511.

115647489 is a `hidden beast` number, since 1 + 1 + 564 + 7 + 4 + 89 = 666.

It is an interprime number because it is at equal distance from previous prime (115647487) and next prime (115647491).

It can be written as a sum of positive squares in only one way, i.e., 98903025 + 16744464 = 9945^2 + 4092^2 .

It is not a de Polignac number, because 115647489 - 2¹ = 115647487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115647487) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6424852 + ... + 6424869.

Almost surely, 2^115647489 is an apocalyptic number.

It is an amenable number.

115647489 is a deficient number, since it is larger than the sum of its proper divisors (51398897).

115647489 is a wasteful number, since it uses less digits than its factorization.

115647489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12849727 (or 12849724 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 115647489 is about 10753.9522502195. The cubic root of 115647489 is about 487.2053730591.

The spelling of 115647489 in words is "one hundred fifteen million, six hundred forty-seven thousand, four hundred eighty-nine".