154245321 has 12 divisors (see below), whose sum is σ = 228233460. Its totient is φ = 100321920.

The previous prime is 154245313. The next prime is 154245349. The reversal of 154245321 is 123542451.

154245321 is nontrivially palindromic in base 2.

It can be written as a sum of positive squares in 2 ways, for example, as 40182921 + 114062400 = 6339^2 + 10680^2 .

It is not a de Polignac number, because 154245321 - 2³ = 154245313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (154240321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 208636 + ... + 209373.

It is an arithmetic number, because the mean of its divisors is an integer number (19019455).

Almost surely, 2^154245321 is an apocalyptic number.

It is an amenable number.

154245321 is a deficient number, since it is larger than the sum of its proper divisors (73988139).

154245321 is a wasteful number, since it uses less digits than its factorization.

154245321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418056 (or 418053 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 154245321 is about 12419.5539774985. The cubic root of 154245321 is about 536.2953106937.

Adding to 154245321 its reverse (123542451), we get a palindrome (277787772).

The spelling of 154245321 in words is "one hundred fifty-four million, two hundred forty-five thousand, three hundred twenty-one".