201971152 has 20 divisors (see below), whose sum is σ = 414338436. Its totient is φ = 95045120.

The previous prime is 201971149. The next prime is 201971221. The reversal of 201971152 is 251179102.

It can be written as a sum of positive squares in 2 ways, for example, as 174345616 + 27625536 = 13204^2 + 5256^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 201971152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370999 + ... + 371542.

Almost surely, 2^201971152 is an apocalyptic number.

It is an amenable number.

201971152 is an abundant number, since it is smaller than the sum of its proper divisors (212367284).

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

201971152 is a wasteful number, since it uses less digits than its factorization.

201971152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742566 (or 742560 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 28.

The square root of 201971152 is about 14211.6554982169. The cubic root of 201971152 is about 586.7184980607.

The spelling of 201971152 in words is "two hundred one million, nine hundred seventy-one thousand, one hundred fifty-two".