147666238 has 8 divisors (see below), whose sum is σ = 225130680. Its totient is φ = 72622680.

The previous prime is 147666227. The next prime is 147666251. The reversal of 147666238 is 832666741.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 147666194 and 147666203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 605068 + ... + 605311.

It is an arithmetic number, because the mean of its divisors is an integer number (28141335).

Almost surely, 2^147666238 is an apocalyptic number.

147666238 is a deficient number, since it is larger than the sum of its proper divisors (77464442).

147666238 is a wasteful number, since it uses less digits than its factorization.

147666238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210442.

The product of its digits is 290304, while the sum is 43.

The square root of 147666238 is about 12151.7997843941. The cubic root of 147666238 is about 528.5593222522.

The spelling of 147666238 in words is "one hundred forty-seven million, six hundred sixty-six thousand, two hundred thirty-eight".