201204451 has 4 divisors (see below), whose sum is σ = 229947952. Its totient is φ = 172460952.

The previous prime is 201204431. The next prime is 201204461. The reversal of 201204451 is 154402102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201204451 - 2²¹ = 199107299 is a prime.

It is a super-2 number, since 2×201204451² = 80966462204422802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201204431) 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 3 ways as a sum of consecutive naturals, for example, 14371740 + ... + 14371753.

It is an arithmetic number, because the mean of its divisors is an integer number (57486988).

Almost surely, 2^201204451 is an apocalyptic number.

201204451 is a deficient number, since it is larger than the sum of its proper divisors (28743501).

201204451 is an equidigital number, since it uses as much as digits as its factorization.

201204451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28743500.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 201204451 is about 14184.6554769582. The cubic root of 201204451 is about 585.9751442590.

Adding to 201204451 its reverse (154402102), we get a palindrome (355606553).

The spelling of 201204451 in words is "two hundred one million, two hundred four thousand, four hundred fifty-one".