201321454 has 16 divisors (see below), whose sum is σ = 323876880. Its totient is φ = 93562560.

The previous prime is 201321443. The next prime is 201321469. The reversal of 201321454 is 454123102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47967 + ... + 51994.

It is an arithmetic number, because the mean of its divisors is an integer number (20242305).

Almost surely, 2^201321454 is an apocalyptic number.

201321454 is a deficient number, since it is larger than the sum of its proper divisors (122555426).

201321454 is a wasteful number, since it uses less digits than its factorization.

201321454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100035.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 201321454 is about 14188.7791581940. The cubic root of 201321454 is about 586.0887063001.

Adding to 201321454 its reverse (454123102), we get a palindrome (655444556).

The spelling of 201321454 in words is "two hundred one million, three hundred twenty-one thousand, four hundred fifty-four".