947145 has 16 divisors (see below), whose sum is σ = 1527552. Its totient is φ = 501120.

The previous prime is 947137. The next prime is 947171. The reversal of 947145 is 541749.

It is a happy number.

It is not a de Polignac number, because 947145 - 2³ = 947137 is a prime.

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 947145.

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, 3360 + ... + 3630.

It is an arithmetic number, because the mean of its divisors is an integer number (95472).

2⁹⁴⁷¹⁴⁵ is an apocalyptic number.

It is an amenable number.

947145 is a deficient number, since it is larger than the sum of its proper divisors (580407).

947145 is a wasteful number, since it uses less digits than its factorization.

947145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512.

The product of its digits is 5040, while the sum is 30.

The square root of 947145 is about 973.2137483616. The cubic root of 947145 is about 98.2061812124.

The spelling of 947145 in words is "nine hundred forty-seven thousand, one hundred forty-five".