147856438 has 8 divisors (see below), whose sum is σ = 221837688. Its totient is φ = 73910544.

The previous prime is 147856433. The next prime is 147856439. The reversal of 147856438 is 834658741.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147856433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8145 + ... + 19027.

It is an arithmetic number, because the mean of its divisors is an integer number (27729711).

Almost surely, 2^147856438 is an apocalyptic number.

147856438 is a deficient number, since it is larger than the sum of its proper divisors (73981250).

147856438 is a wasteful number, since it uses less digits than its factorization.

147856438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17678.

The product of its digits is 645120, while the sum is 46.

The square root of 147856438 is about 12159.6232671905. The cubic root of 147856438 is about 528.7861600459.

The spelling of 147856438 in words is "one hundred forty-seven million, eight hundred fifty-six thousand, four hundred thirty-eight".