521453234 has 8 divisors (see below), whose sum is σ = 809151660. Its totient is φ = 251736016.

The previous prime is 521453221. The next prime is 521453249. The reversal of 521453234 is 432354125.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 515426209 + 6027025 = 22703^2 + 2455^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 521453197 and 521453206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4495229 + ... + 4495344.

Almost surely, 2^521453234 is an apocalyptic number.

521453234 is a deficient number, since it is larger than the sum of its proper divisors (287698426).

521453234 is a wasteful number, since it uses less digits than its factorization.

521453234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8990604.

The product of its digits is 14400, while the sum is 29.

The square root of 521453234 is about 22835.3505337667. The cubic root of 521453234 is about 804.8935646222.

The spelling of 521453234 in words is "five hundred twenty-one million, four hundred fifty-three thousand, two hundred thirty-four".