521294 has 4 divisors (see below), whose sum is σ = 781944. Its totient is φ = 260646.

The previous prime is 521281. The next prime is 521299. The reversal of 521294 is 492125.

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

It is an alternating number because its digits alternate between odd and even.

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 521294.

It is not an unprimeable number, because it can be changed into a prime (521299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130322 + ... + 130325.

It is an arithmetic number, because the mean of its divisors is an integer number (195486).

521294 is a Friedman number, since it can be written as 2*(5+19^4*2), using all its digits and the basic arithmetic operations.

2⁵²¹²⁹⁴ is an apocalyptic number.

521294 is a deficient number, since it is larger than the sum of its proper divisors (260650).

521294 is a wasteful number, since it uses less digits than its factorization.

521294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260649.

The product of its digits is 720, while the sum is 23.

The square root of 521294 is about 722.0069251745. The cubic root of 521294 is about 80.4811627284.

The spelling of 521294 in words is "five hundred twenty-one thousand, two hundred ninety-four".