115749497 has 4 divisors (see below), whose sum is σ = 116831376. Its totient is φ = 114667620.

The previous prime is 115749467. The next prime is 115749499. The reversal of 115749497 is 794947511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 794947511 = 103 ⋅7717937.

It is not a de Polignac number, because 115749497 - 2¹⁰ = 115748473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115749499) 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, 540779 + ... + 540992.

It is an arithmetic number, because the mean of its divisors is an integer number (29207844).

Almost surely, 2^115749497 is an apocalyptic number.

It is an amenable number.

115749497 is a deficient number, since it is larger than the sum of its proper divisors (1081879).

115749497 is a wasteful number, since it uses less digits than its factorization.

115749497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081878.

The product of its digits is 317520, while the sum is 47.

The square root of 115749497 is about 10758.6940192572. The cubic root of 115749497 is about 487.3485790518.

The spelling of 115749497 in words is "one hundred fifteen million, seven hundred forty-nine thousand, four hundred ninety-seven".