521452234 has 4 divisors (see below), whose sum is σ = 782178354. Its totient is φ = 260726116.

The previous prime is 521452189. The next prime is 521452301. The reversal of 521452234 is 432254125.

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

It can be written as a sum of positive squares in only one way, i.e., 472410225 + 49042009 = 21735^2 + 7003^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130363057 + ... + 130363060.

Almost surely, 2^521452234 is an apocalyptic number.

521452234 is a deficient number, since it is larger than the sum of its proper divisors (260726120).

521452234 is a wasteful number, since it uses less digits than its factorization.

521452234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260726119.

The product of its digits is 9600, while the sum is 28.

The square root of 521452234 is about 22835.3286378804. The cubic root of 521452234 is about 804.8930501024.

The spelling of 521452234 in words is "five hundred twenty-one million, four hundred fifty-two thousand, two hundred thirty-four".