147666025 has 12 divisors (see below), whose sum is σ = 197191372. Its totient is φ = 109045440.

The previous prime is 147666019. The next prime is 147666031. The reversal of 147666025 is 520666741.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (147666019) and next prime (147666031).

It can be written as a sum of positive squares in 6 ways, for example, as 262144 + 147403881 = 512^2 + 12141^2 .

It is not a de Polignac number, because 147666025 - 2³ = 147666017 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 226854 + ... + 227503.

Almost surely, 2^147666025 is an apocalyptic number.

It is an amenable number.

147666025 is a deficient number, since it is larger than the sum of its proper divisors (49525347).

147666025 is a wasteful number, since it uses less digits than its factorization.

147666025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454380 (or 454375 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 147666025 is about 12151.7910202571. The cubic root of 147666025 is about 528.5590681133.

The spelling of 147666025 in words is "one hundred forty-seven million, six hundred sixty-six thousand, twenty-five".