201055115 has 8 divisors (see below), whose sum is σ = 249585840. Its totient is φ = 155297632.

The previous prime is 201055069. The next prime is 201055117. The reversal of 201055115 is 511550102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201055115 - 2⁶ = 201055051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201055117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 693149 + ... + 693438.

It is an arithmetic number, because the mean of its divisors is an integer number (31198230).

Almost surely, 2^201055115 is an apocalyptic number.

201055115 is a deficient number, since it is larger than the sum of its proper divisors (48530725).

201055115 is a wasteful number, since it uses less digits than its factorization.

201055115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386621.

The product of its (nonzero) digits is 250, while the sum is 20.

The square root of 201055115 is about 14179.3905017106. The cubic root of 201055115 is about 585.8301361305.

The spelling of 201055115 in words is "two hundred one million, fifty-five thousand, one hundred fifteen".