201031461 has 6 divisors (see below), whose sum is σ = 290378790. Its totient is φ = 134020968.

The previous prime is 201031447. The next prime is 201031469. The reversal of 201031461 is 164130102.

It is a happy number.

201031461 is a `hidden beast` number, since 201 + 0 + 3 + 1 + 461 = 666.

It can be written as a sum of positive squares in only one way, i.e., 161417025 + 39614436 = 12705^2 + 6294^2 .

It is not a de Polignac number, because 201031461 - 2⁵ = 201031429 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201031469) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11168406 + ... + 11168423.

It is an arithmetic number, because the mean of its divisors is an integer number (48396465).

Almost surely, 2^201031461 is an apocalyptic number.

It is an amenable number.

201031461 is a deficient number, since it is larger than the sum of its proper divisors (89347329).

201031461 is a wasteful number, since it uses less digits than its factorization.

201031461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22336835 (or 22336832 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 201031461 is about 14178.5563792651. The cubic root of 201031461 is about 585.8071610548.

Adding to 201031461 its reverse (164130102), we get a palindrome (365161563).

The spelling of 201031461 in words is "two hundred one million, thirty-one thousand, four hundred sixty-one".