521319914 has 8 divisors (see below), whose sum is σ = 792993888. Its totient is φ = 256988620.

The previous prime is 521319881. The next prime is 521319919. The reversal of 521319914 is 419913125.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (521319919) by changing a digit.

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, 1835492 + ... + 1835775.

It is an arithmetic number, because the mean of its divisors is an integer number (99124236).

Almost surely, 2^521319914 is an apocalyptic number.

521319914 is a deficient number, since it is larger than the sum of its proper divisors (271673974).

521319914 is a wasteful number, since it uses less digits than its factorization.

521319914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3671340.

The product of its digits is 9720, while the sum is 35.

The square root of 521319914 is about 22832.4311889908. The cubic root of 521319914 is about 804.8249630363.

The spelling of 521319914 in words is "five hundred twenty-one million, three hundred nineteen thousand, nine hundred fourteen".