201150155 has 4 divisors (see below), whose sum is σ = 241380192. Its totient is φ = 160920120.

The previous prime is 201150151. The next prime is 201150163. The reversal of 201150155 is 551051102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 201150155 - 2² = 201150151 is a prime.

It is a super-2 number, since 2×201150155² = 80922769713048050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201150151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20115011 + ... + 20115020.

It is an arithmetic number, because the mean of its divisors is an integer number (60345048).

Almost surely, 2^201150155 is an apocalyptic number.

201150155 is a deficient number, since it is larger than the sum of its proper divisors (40230037).

201150155 is an equidigital number, since it uses as much as digits as its factorization.

201150155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40230036.

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

The square root of 201150155 is about 14182.7414486763. The cubic root of 201150155 is about 585.9224301025.

The spelling of 201150155 in words is "two hundred one million, one hundred fifty thousand, one hundred fifty-five".