201230451 has 12 divisors (see below), whose sum is σ = 291533112. Its totient is φ = 133753536.

The previous prime is 201230443. The next prime is 201230467. The reversal of 201230451 is 154032102.

It is not a de Polignac number, because 201230451 - 2³ = 201230443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201230431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30141 + ... + 36206.

It is an arithmetic number, because the mean of its divisors is an integer number (24294426).

Almost surely, 2^201230451 is an apocalyptic number.

201230451 is a deficient number, since it is larger than the sum of its proper divisors (90302661).

201230451 is a wasteful number, since it uses less digits than its factorization.

201230451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66690 (or 66687 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 201230451 is about 14185.5719306625. The cubic root of 201230451 is about 586.0003834249. Note that the first 3 decimals are identical.

Adding to 201230451 its reverse (154032102), we get a palindrome (355262553).

The spelling of 201230451 in words is "two hundred one million, two hundred thirty thousand, four hundred fifty-one".