201241251 has 6 divisors (see below), whose sum is σ = 290681820. Its totient is φ = 134160828.

The previous prime is 201241207. The next prime is 201241253. The reversal of 201241251 is 152142102.

201241251 is a `hidden beast` number, since 201 + 2 + 412 + 51 = 666.

It is not a de Polignac number, because 201241251 - 2¹⁰ = 201240227 is a prime.

It is a super-2 number, since 2×201241251² = 80996082208090002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201241253) 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, 11180061 + ... + 11180078.

It is an arithmetic number, because the mean of its divisors is an integer number (48446970).

Almost surely, 2^201241251 is an apocalyptic number.

201241251 is a deficient number, since it is larger than the sum of its proper divisors (89440569).

201241251 is a wasteful number, since it uses less digits than its factorization.

201241251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22360145 (or 22360142 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 201241251 is about 14185.9525940277. The cubic root of 201241251 is about 586.0108667470.

Adding to 201241251 its reverse (152142102), we get a palindrome (353383353).

The spelling of 201241251 in words is "two hundred one million, two hundred forty-one thousand, two hundred fifty-one".