201971232 has 120 divisors (see below), whose sum is σ = 603375696. Its totient is φ = 66261888.

The previous prime is 201971221. The next prime is 201971243. The reversal of 201971232 is 232179102.

It is an interprime number because it is at equal distance from previous prime (201971221) and next prime (201971243).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 201971196 and 201971205.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 173083 + ... + 174245.

Almost surely, 2^201971232 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 201971232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301687848).

201971232 is an abundant number, since it is smaller than the sum of its proper divisors (401404464).

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

201971232 is a wasteful number, since it uses less digits than its factorization.

201971232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252 (or 1235 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 201971232 is about 14211.6583128078. The cubic root of 201971232 is about 586.7185755263.

The spelling of 201971232 in words is "two hundred one million, nine hundred seventy-one thousand, two hundred thirty-two".