147123906 has 8 divisors (see below), whose sum is σ = 294247824. Its totient is φ = 49041300.

The previous prime is 147123869. The next prime is 147123913. The reversal of 147123906 is 609321741.

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

147123906 is an admirable 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 3 ways as a sum of consecutive naturals, for example, 12260320 + ... + 12260331.

It is an arithmetic number, because the mean of its divisors is an integer number (36780978).

Almost surely, 2^147123906 is an apocalyptic number.

147123906 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

147123906 is a wasteful number, since it uses less digits than its factorization.

147123906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24520656.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 147123906 is about 12129.4643739944. The cubic root of 147123906 is about 527.9114506578.

The spelling of 147123906 in words is "one hundred forty-seven million, one hundred twenty-three thousand, nine hundred six".