115146749 has 4 divisors (see below), whose sum is σ = 115434300. Its totient is φ = 114859200.

The previous prime is 115146743. The next prime is 115146751. The reversal of 115146749 is 947641511.

It is a happy number.

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 93122500 + 22024249 = 9650^2 + 4693^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115146749 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 (115146743) 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, 143174 + ... + 143975.

It is an arithmetic number, because the mean of its divisors is an integer number (28858575).

Almost surely, 2^115146749 is an apocalyptic number.

It is an amenable number.

115146749 is a deficient number, since it is larger than the sum of its proper divisors (287551).

115146749 is an equidigital number, since it uses as much as digits as its factorization.

115146749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287550.

The product of its digits is 30240, while the sum is 38.

The square root of 115146749 is about 10730.6453207624. The cubic root of 115146749 is about 486.5011750958.

The spelling of 115146749 in words is "one hundred fifteen million, one hundred forty-six thousand, seven hundred forty-nine".