147565 has 8 divisors (see below), whose sum is σ = 193248. Its totient is φ = 107280.

The previous prime is 147557. The next prime is 147571. The reversal of 147565 is 565741.

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

It is not a de Polignac number, because 147565 - 2³ = 147557 is a prime.

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1287 + ... + 1396.

It is an arithmetic number, because the mean of its divisors is an integer number (24156).

2¹⁴⁷⁵⁶⁵ is an apocalyptic number.

It is an amenable number.

147565 is a deficient number, since it is larger than the sum of its proper divisors (45683).

147565 is a wasteful number, since it uses less digits than its factorization.

147565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2699.

The product of its digits is 4200, while the sum is 28.

The square root of 147565 is about 384.1419008648. The cubic root of 147565 is about 52.8438503567.

It can be divided in two parts, 1475 and 65, that added together give a triangular number (1540 = T₅₅).

The spelling of 147565 in words is "one hundred forty-seven thousand, five hundred sixty-five".