154340225 has 24 divisors (see below), whose sum is σ = 207070080. Its totient is φ = 113440320.

The previous prime is 154340213. The next prime is 154340239. The reversal of 154340225 is 522043451.

It is a happy number.

It is not a de Polignac number, because 154340225 - 2¹⁰ = 154339201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 154340194 and 154340203.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 76682 + ... + 78668.

It is an arithmetic number, because the mean of its divisors is an integer number (8627920).

Almost surely, 2^154340225 is an apocalyptic number.

It is an amenable number.

154340225 is a deficient number, since it is larger than the sum of its proper divisors (52729855).

154340225 is a wasteful number, since it uses less digits than its factorization.

154340225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2249 (or 2244 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 154340225 is about 12423.3741390976. The cubic root of 154340225 is about 536.4052786652.

Adding to 154340225 its reverse (522043451), we get a palindrome (676383676).

The spelling of 154340225 in words is "one hundred fifty-four million, three hundred forty thousand, two hundred twenty-five".