521124116 has 6 divisors (see below), whose sum is σ = 911967210. Its totient is φ = 260562056.

The previous prime is 521124089. The next prime is 521124119. The reversal of 521124116 is 611421125.

It can be written as a sum of positive squares in only one way, i.e., 277888900 + 243235216 = 16670^2 + 15596^2 .

It is a junction number, because it is equal to n+sod(n) for n = 521124091 and 521124100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521124119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65140511 + ... + 65140518.

It is an arithmetic number, because the mean of its divisors is an integer number (151994535).

Almost surely, 2^521124116 is an apocalyptic number.

It is an amenable number.

521124116 is a deficient number, since it is larger than the sum of its proper divisors (390843094).

521124116 is a wasteful number, since it uses less digits than its factorization.

521124116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130281033 (or 130281031 counting only the distinct ones).

The product of its digits is 480, while the sum is 23.

The square root of 521124116 is about 22828.1430694658. The cubic root of 521124116 is about 804.7241913563.

The spelling of 521124116 in words is "five hundred twenty-one million, one hundred twenty-four thousand, one hundred sixteen".