201171152 has 80 divisors (see below), whose sum is σ = 495301632. Its totient is φ = 76999680.

The previous prime is 201171143. The next prime is 201171161. The reversal of 201171152 is 251171102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (201171143) and next prime (201171161).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42908 + ... + 47364.

Almost surely, 2^201171152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201171152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247650816).

201171152 is an abundant number, since it is smaller than the sum of its proper divisors (294130480).

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

201171152 is a wasteful number, since it uses less digits than its factorization.

201171152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4516 (or 4510 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 20.

The square root of 201171152 is about 14183.4816600156. The cubic root of 201171152 is about 585.9428165069.

The spelling of 201171152 in words is "two hundred one million, one hundred seventy-one thousand, one hundred fifty-two".