147381 has 8 divisors (see below), whose sum is σ = 211680. Its totient is φ = 90672.

The previous prime is 147377. The next prime is 147391. The reversal of 147381 is 183741.

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

It is not a de Polignac number, because 147381 - 2² = 147377 is a prime.

It is a super-2 number, since 2×147381² = 43442318322, which contains 22 as substring.

It is a nialpdrome in base 13.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 147381.

It is not an unprimeable number, because it can be changed into a prime (147311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1851 + ... + 1928.

It is an arithmetic number, because the mean of its divisors is an integer number (26460).

2¹⁴⁷³⁸¹ is an apocalyptic number.

It is an amenable number.

147381 is a deficient number, since it is larger than the sum of its proper divisors (64299).

147381 is a wasteful number, since it uses less digits than its factorization.

147381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3795.

The product of its digits is 672, while the sum is 24.

The square root of 147381 is about 383.9023313292. The cubic root of 147381 is about 52.8218774124.

It can be divided in two parts, 147 and 381, that added together give a triangular number (528 = T₃₂).

The spelling of 147381 in words is "one hundred forty-seven thousand, three hundred eighty-one".