201115054 has 16 divisors (see below), whose sum is σ = 354087648. Its totient is φ = 83862432.

The previous prime is 201115051. The next prime is 201115063. The reversal of 201115054 is 450511102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201115051) 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, 193609 + ... + 194644.

It is an arithmetic number, because the mean of its divisors is an integer number (22130478).

Almost surely, 2^201115054 is an apocalyptic number.

201115054 is a deficient number, since it is larger than the sum of its proper divisors (152972594).

201115054 is a wasteful number, since it uses less digits than its factorization.

201115054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388299.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 201115054 is about 14181.5039399917. The cubic root of 201115054 is about 585.8883466759. Note that the first 3 decimals are identical.

Adding to 201115054 its reverse (450511102), we get a palindrome (651626156).

The spelling of 201115054 in words is "two hundred one million, one hundred fifteen thousand, fifty-four".