523161416 has 16 divisors (see below), whose sum is σ = 990641340. Its totient is φ = 258990400.

The previous prime is 523161407. The next prime is 523161461. The reversal of 523161416 is 614161325.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 468549316 + 54612100 = 21646^2 + 7390^2 .

It is a super-2 number, since 2×523161416² = 547395734382250112, which contains 22 as substring.

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, 322931 + ... + 324546.

Almost surely, 2^523161416 is an apocalyptic number.

It is an amenable number.

523161416 is a deficient number, since it is larger than the sum of its proper divisors (467479924).

523161416 is a wasteful number, since it uses less digits than its factorization.

523161416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647584 (or 647580 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 523161416 is about 22872.7220942327. The cubic root of 523161416 is about 805.7714996102.

Subtracting 523161416 from its reverse (614161325), we obtain a palindrome (90999909).

The spelling of 523161416 in words is "five hundred twenty-three million, one hundred sixty-one thousand, four hundred sixteen".