526945 has 4 divisors (see below), whose sum is σ = 632340. Its totient is φ = 421552.

The previous prime is 526943. The next prime is 526951. The reversal of 526945 is 549625.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 318096 + 208849 = 564^2 + 457^2 .

It is a cyclic number.

It is not a de Polignac number, because 526945 - 2¹ = 526943 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

526945 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (526943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52690 + ... + 52699.

It is an arithmetic number, because the mean of its divisors is an integer number (158085).

2⁵²⁶⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

526945 is a deficient number, since it is larger than the sum of its proper divisors (105395).

526945 is a wasteful number, since it uses less digits than its factorization.

526945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105394.

The product of its digits is 10800, while the sum is 31.

The square root of 526945 is about 725.9097740078. The cubic root of 526945 is about 80.7709323439.

The spelling of 526945 in words is "five hundred twenty-six thousand, nine hundred forty-five".