154225105 has 8 divisors (see below), whose sum is σ = 195956712. Its totient is φ = 116122368.

The previous prime is 154225091. The next prime is 154225157. The reversal of 154225105 is 501522451.

It can be written as a sum of positive squares in 4 ways, for example, as 88679889 + 65545216 = 9417^2 + 8096^2 .

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 154225105 - 2⁵ = 154225073 is a prime.

It is a super-2 number, since 2×154225105² = 47570766024522050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 154225105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 907122 + ... + 907291.

It is an arithmetic number, because the mean of its divisors is an integer number (24494589).

Almost surely, 2^154225105 is an apocalyptic number.

It is an amenable number.

154225105 is a deficient number, since it is larger than the sum of its proper divisors (41731607).

154225105 is a wasteful number, since it uses less digits than its factorization.

154225105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1814435.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 154225105 is about 12418.7400729704. The cubic root of 154225105 is about 536.2718800106.

Adding to 154225105 its reverse (501522451), we get a palindrome (655747556).

The spelling of 154225105 in words is "one hundred fifty-four million, two hundred twenty-five thousand, one hundred five".