147805 has 16 divisors (see below), whose sum is σ = 209664. Its totient is φ = 97920.

The previous prime is 147799. The next prime is 147811. The reversal of 147805 is 508741.

It is an interprime number because it is at equal distance from previous prime (147799) and next prime (147811).

It is not a de Polignac number, because 147805 - 2⁵ = 147773 is a prime.

It is a plaindrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 147805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1384 + ... + 1486.

It is an arithmetic number, because the mean of its divisors is an integer number (13104).

2¹⁴⁷⁸⁰⁵ is an apocalyptic number.

It is an amenable number.

147805 is a deficient number, since it is larger than the sum of its proper divisors (61859).

147805 is a wasteful number, since it uses less digits than its factorization.

147805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 147805 is about 384.4541585157. The cubic root of 147805 is about 52.8724832861.

The spelling of 147805 in words is "one hundred forty-seven thousand, eight hundred five".