201171948 has 24 divisors (see below), whose sum is σ = 497013552. Its totient is φ = 63112704.

The previous prime is 201171947. The next prime is 201171959. The reversal of 201171948 is 849171102.

It is a super-2 number, since 2×201171948² = 80940305324229408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201171947) 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 7 ways as a sum of consecutive naturals, for example, 492865 + ... + 493272.

It is an arithmetic number, because the mean of its divisors is an integer number (20708898).

Almost surely, 2^201171948 is an apocalyptic number.

It is an amenable number.

201171948 is an abundant number, since it is smaller than the sum of its proper divisors (295841604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201171948 is a wasteful number, since it uses less digits than its factorization.

201171948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986161 (or 986159 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 33.

The square root of 201171948 is about 14183.5097207990. The cubic root of 201171948 is about 585.9435893312.

The spelling of 201171948 in words is "two hundred one million, one hundred seventy-one thousand, nine hundred forty-eight".