523002161 has 8 divisors (see below), whose sum is σ = 604109664. Its totient is φ = 447488320.

The previous prime is 523002107. The next prime is 523002167. The reversal of 523002161 is 161200325.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-523002161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (523002167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1398215 + ... + 1398588.

It is an arithmetic number, because the mean of its divisors is an integer number (75513708).

Almost surely, 2^523002161 is an apocalyptic number.

It is an amenable number.

523002161 is a deficient number, since it is larger than the sum of its proper divisors (81107503).

523002161 is a wasteful number, since it uses less digits than its factorization.

523002161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2796831.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 523002161 is about 22869.2404989759. The cubic root of 523002161 is about 805.6897299693.

Adding to 523002161 its reverse (161200325), we get a palindrome (684202486).

The spelling of 523002161 in words is "five hundred twenty-three million, two thousand, one hundred sixty-one".