115780229 has 4 divisors (see below), whose sum is σ = 120814176. Its totient is φ = 110746284.

The previous prime is 115780219. The next prime is 115780237. The reversal of 115780229 is 922087511.

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: 922087511 = 2393 ⋅385327.

It is a cyclic number.

It is not a de Polignac number, because 115780229 - 2⁸ = 115779973 is a prime.

It is a super-2 number, since 2×115780229² = 26810122854584882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115780219) 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, 2516939 + ... + 2516984.

It is an arithmetic number, because the mean of its divisors is an integer number (30203544).

Almost surely, 2^115780229 is an apocalyptic number.

It is an amenable number.

115780229 is a deficient number, since it is larger than the sum of its proper divisors (5033947).

115780229 is an equidigital number, since it uses as much as digits as its factorization.

115780229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5033946.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 115780229 is about 10760.1221647340. The cubic root of 115780229 is about 487.3917062982.

The spelling of 115780229 in words is "one hundred fifteen million, seven hundred eighty thousand, two hundred twenty-nine".