115400273 has 4 divisors (see below), whose sum is σ = 116520768. Its totient is φ = 114279780.

The previous prime is 115400231. The next prime is 115400279. The reversal of 115400273 is 372004511.

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.

It is a cyclic number.

It is not a de Polignac number, because 115400273 - 2⁸ = 115400017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115400279) 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, 560093 + ... + 560298.

It is an arithmetic number, because the mean of its divisors is an integer number (29130192).

Almost surely, 2^115400273 is an apocalyptic number.

It is an amenable number.

115400273 is a deficient number, since it is larger than the sum of its proper divisors (1120495).

115400273 is a wasteful number, since it uses less digits than its factorization.

115400273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120494.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 115400273 is about 10742.4519082005. The cubic root of 115400273 is about 486.8579641921.

Adding to 115400273 its reverse (372004511), we get a palindrome (487404784).

The spelling of 115400273 in words is "one hundred fifteen million, four hundred thousand, two hundred seventy-three".