201404551 has 8 divisors (see below), whose sum is σ = 208183808. Its totient is φ = 194643000.

The previous prime is 201404531. The next prime is 201404569. The reversal of 201404551 is 155404102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201404551 - 2⁵ = 201404519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201404521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21136 + ... + 29146.

It is an arithmetic number, because the mean of its divisors is an integer number (26022976).

Almost surely, 2^201404551 is an apocalyptic number.

201404551 is a deficient number, since it is larger than the sum of its proper divisors (6779257).

201404551 is an equidigital number, since it uses as much as digits as its factorization.

201404551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8853.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 201404551 is about 14191.7071207096. The cubic root of 201404551 is about 586.1693327693.

Adding to 201404551 its reverse (155404102), we get a palindrome (356808653).

The spelling of 201404551 in words is "two hundred one million, four hundred four thousand, five hundred fifty-one".