522152161 has 4 divisors (see below), whose sum is σ = 552867012. Its totient is φ = 491437312.

The previous prime is 522152117. The next prime is 522152201. The reversal of 522152161 is 161251225.

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

It can be written as a sum of positive squares in 2 ways, for example, as 252174400 + 269977761 = 15880^2 + 16431^2 .

It is a cyclic number.

It is not a de Polignac number, because 522152161 - 2²⁵ = 488597729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (522152461) 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, 15357400 + ... + 15357433.

It is an arithmetic number, because the mean of its divisors is an integer number (138216753).

Almost surely, 2^522152161 is an apocalyptic number.

It is an amenable number.

522152161 is a deficient number, since it is larger than the sum of its proper divisors (30714851).

522152161 is a wasteful number, since it uses less digits than its factorization.

522152161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30714850.

The product of its digits is 1200, while the sum is 25.

The square root of 522152161 is about 22850.6490279817. The cubic root of 522152161 is about 805.2530156413.

The spelling of 522152161 in words is "five hundred twenty-two million, one hundred fifty-two thousand, one hundred sixty-one".