154240201 has 8 divisors (see below), whose sum is σ = 163787400. Its totient is φ = 144745728.

The previous prime is 154240199. The next prime is 154240213. The reversal of 154240201 is 102042451.

It can be written as a sum of positive squares in 4 ways, for example, as 27092025 + 127148176 = 5205^2 + 11276^2 .

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 154240201 - 2¹ = 154240199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154240291) 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 in 7 ways as a sum of consecutive naturals, for example, 7066 + ... + 18931.

It is an arithmetic number, because the mean of its divisors is an integer number (20473425).

Almost surely, 2^154240201 is an apocalyptic number.

It is an amenable number.

154240201 is a deficient number, since it is larger than the sum of its proper divisors (9547199).

154240201 is a wasteful number, since it uses less digits than its factorization.

154240201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26363.

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

The square root of 154240201 is about 12419.3478492230. The cubic root of 154240201 is about 536.2893767214.

Adding to 154240201 its reverse (102042451), we get a palindrome (256282652).

The spelling of 154240201 in words is "one hundred fifty-four million, two hundred forty thousand, two hundred one".