115729201 has 4 divisors (see below), whose sum is σ = 132261952. Its totient is φ = 99196452.

The previous prime is 115729193. The next prime is 115729213. The reversal of 115729201 is 102927511.

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 115729201 - 2³ = 115729193 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115729201.

It is not an unprimeable number, because it can be changed into a prime (115729241) 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, 8266365 + ... + 8266378.

It is an arithmetic number, because the mean of its divisors is an integer number (33065488).

Almost surely, 2^115729201 is an apocalyptic number.

It is an amenable number.

115729201 is a deficient number, since it is larger than the sum of its proper divisors (16532751).

115729201 is an equidigital number, since it uses as much as digits as its factorization.

115729201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16532750.

The product of its (nonzero) digits is 1260, while the sum is 28.

The square root of 115729201 is about 10757.7507407450. The cubic root of 115729201 is about 487.3200928087.

It can be divided in two parts, 115 and 729201, that added together give a square (729316 = 854²).

The spelling of 115729201 in words is "one hundred fifteen million, seven hundred twenty-nine thousand, two hundred one".