624315161 has 8 divisors (see below), whose sum is σ = 646840200. Its totient is φ = 601856640.

The previous prime is 624315119. The next prime is 624315163. The reversal of 624315161 is 161513426.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 372490000 + 251825161 = 19300^2 + 15869^2 .

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-624315161 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (624315163) 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, 2885 + ... + 35453.

It is an arithmetic number, because the mean of its divisors is an integer number (80855025).

Almost surely, 2^624315161 is an apocalyptic number.

It is an amenable number.

624315161 is a deficient number, since it is larger than the sum of its proper divisors (22525039).

624315161 is a wasteful number, since it uses less digits than its factorization.

624315161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33259.

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

The square root of 624315161 is about 24986.2994659073. The cubic root of 624315161 is about 854.6755770173.

Adding to 624315161 its reverse (161513426), we get a palindrome (785828587).

The spelling of 624315161 in words is "six hundred twenty-four million, three hundred fifteen thousand, one hundred sixty-one".