145847 has 6 divisors (see below), whose sum is σ = 158112. Its totient is φ = 134472.

The previous prime is 145829. The next prime is 145861. The reversal of 145847 is 748541.

It is a de Polignac number, because none of the positive numbers 2^k-145847 is a prime.

It is a Duffinian number.

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 145847.

It is not an unprimeable number, because it can be changed into a prime (145807) 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 5 ways as a sum of consecutive naturals, for example, 263 + ... + 600.

It is an arithmetic number, because the mean of its divisors is an integer number (26352).

2¹⁴⁵⁸⁴⁷ is an apocalyptic number.

145847 is a deficient number, since it is larger than the sum of its proper divisors (12265).

145847 is an equidigital number, since it uses as much as digits as its factorization.

145847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889 (or 876 counting only the distinct ones).

The product of its digits is 4480, while the sum is 29.

The square root of 145847 is about 381.8992013608. The cubic root of 145847 is about 52.6379741878.

The spelling of 145847 in words is "one hundred forty-five thousand, eight hundred forty-seven".