201540452 has 6 divisors (see below), whose sum is σ = 352695798. Its totient is φ = 100770224.

The previous prime is 201540439. The next prime is 201540481. The reversal of 201540452 is 254045102.

It is a happy number.

201540452 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 147282496 + 54257956 = 12136^2 + 7366^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25192553 + ... + 25192560.

It is an arithmetic number, because the mean of its divisors is an integer number (58782633).

Almost surely, 2^201540452 is an apocalyptic number.

It is an amenable number.

201540452 is a deficient number, since it is larger than the sum of its proper divisors (151155346).

201540452 is a wasteful number, since it uses less digits than its factorization.

201540452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50385117 (or 50385115 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 201540452 is about 14196.4943560021. The cubic root of 201540452 is about 586.3011455599.

Adding to 201540452 its reverse (254045102), we get a palindrome (455585554).

The spelling of 201540452 in words is "two hundred one million, five hundred forty thousand, four hundred fifty-two".