147438 has 12 divisors (see below), whose sum is σ = 319488. Its totient is φ = 49140.

The previous prime is 147419. The next prime is 147449. The reversal of 147438 is 834741.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between odd and even.

It is a congruent 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 5 ways as a sum of consecutive naturals, for example, 4078 + ... + 4113.

It is an arithmetic number, because the mean of its divisors is an integer number (26624).

2¹⁴⁷⁴³⁸ is an apocalyptic number.

147438 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

147438 is an abundant number, since it is smaller than the sum of its proper divisors (172050).

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

147438 is a wasteful number, since it uses less digits than its factorization.

147438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8199 (or 8196 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 147438 is about 383.9765617847. The cubic root of 147438 is about 52.8286862026.

It can be divided in two parts, 147 and 438, that added together give a palindrome (585).

The spelling of 147438 in words is "one hundred forty-seven thousand, four hundred thirty-eight".