154044475225 has 9 divisors (see below), whose sum is σ = 191017582717. Its totient is φ = 123234010240.

The previous prime is 154044475219. The next prime is 154044475241. The reversal of 154044475225 is 522574440451.

The square root of 154044475225 is 392485.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 34746078409 + 119298396816 = 186403^2 + 345396^2 .

It is not a de Polignac number, because 154044475225 - 2²¹ = 154042378073 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1923177 + ... + 2001673.

Almost surely, 2^154044475225 is an apocalyptic number.

154044475225 is the 392485-th square number.

154044475225 is the 196243-rd centered octagonal number.

It is an amenable number.

154044475225 is a deficient number, since it is larger than the sum of its proper divisors (36973107492).

154044475225 is an frugal number, since it uses more digits than its factorization.

154044475225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157004 (or 78502 counting only the distinct ones).

The product of its (nonzero) digits is 896000, while the sum is 43.

The spelling of 154044475225 in words is "one hundred fifty-four billion, forty-four million, four hundred seventy-five thousand, two hundred twenty-five".