201416551 has 4 divisors (see below), whose sum is σ = 230190352. Its totient is φ = 172642752.

The previous prime is 201416531. The next prime is 201416569. The reversal of 201416551 is 155614102.

It is a happy number.

201416551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 201416551 - 2²³ = 193027943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201416531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14386890 + ... + 14386903.

It is an arithmetic number, because the mean of its divisors is an integer number (57547588).

Almost surely, 2^201416551 is an apocalyptic number.

201416551 is a deficient number, since it is larger than the sum of its proper divisors (28773801).

201416551 is an equidigital number, since it uses as much as digits as its factorization.

201416551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28773800.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 201416551 is about 14192.1298965307. The cubic root of 201416551 is about 586.1809741685.

The spelling of 201416551 in words is "two hundred one million, four hundred sixteen thousand, five hundred fifty-one".