154321201 has 2 divisors, whose sum is σ = 154321202. Its totient is φ = 154321200.

The previous prime is 154321199. The next prime is 154321229. The reversal of 154321201 is 102123451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 151167025 + 3154176 = 12295^2 + 1776^2 .

It is an emirp because it is prime and its reverse (102123451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 154321201 - 2¹ = 154321199 is a prime.

Together with 154321199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (154321261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77160600 + 77160601.

It is an arithmetic number, because the mean of its divisors is an integer number (77160601).

Almost surely, 2^154321201 is an apocalyptic number.

It is an amenable number.

154321201 is a deficient number, since it is larger than the sum of its proper divisors (1).

154321201 is an equidigital number, since it uses as much as digits as its factorization.

154321201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 154321201 is about 12422.6084619938. The cubic root of 154321201 is about 536.3832386270.

Adding to 154321201 its reverse (102123451), we get a palindrome (256444652).

The spelling of 154321201 in words is "one hundred fifty-four million, three hundred twenty-one thousand, two hundred one".