522144981 has 16 divisors (see below), whose sum is σ = 774078400. Its totient is φ = 347858064.

The previous prime is 522144979. The next prime is 522144991. The reversal of 522144981 is 189441225.

522144981 is a `hidden beast` number, since 522 + 1 + 44 + 98 + 1 = 666.

It is not a de Polignac number, because 522144981 - 2¹ = 522144979 is a prime.

It is a super-2 number, since 2×522144981² = 545270762366980722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522144991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39270 + ... + 50856.

It is an arithmetic number, because the mean of its divisors is an integer number (48379900).

Almost surely, 2^522144981 is an apocalyptic number.

It is an amenable number.

522144981 is a deficient number, since it is larger than the sum of its proper divisors (251933419).

522144981 is a wasteful number, since it uses less digits than its factorization.

522144981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13265 (or 13259 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 522144981 is about 22850.4919203067. The cubic root of 522144981 is about 805.2493246718.

The spelling of 522144981 in words is "five hundred twenty-two million, one hundred forty-four thousand, nine hundred eighty-one".