201772148 has 6 divisors (see below), whose sum is σ = 353101266. Its totient is φ = 100886072.

The previous prime is 201772141. The next prime is 201772163. The reversal of 201772148 is 841277102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 120736144 + 81036004 = 10988^2 + 9002^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201772141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25221515 + ... + 25221522.

It is an arithmetic number, because the mean of its divisors is an integer number (58850211).

Almost surely, 2^201772148 is an apocalyptic number.

It is an amenable number.

201772148 is a deficient number, since it is larger than the sum of its proper divisors (151329118).

201772148 is a wasteful number, since it uses less digits than its factorization.

201772148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50443041 (or 50443039 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 201772148 is about 14204.6523364706. The cubic root of 201772148 is about 586.5257350582.

The spelling of 201772148 in words is "two hundred one million, seven hundred seventy-two thousand, one hundred forty-eight".