687160148 has 6 divisors (see below), whose sum is σ = 1202530266. Its totient is φ = 343580072.

The previous prime is 687160141. The next prime is 687160151. The reversal of 687160148 is 841061786.

It can be written as a sum of positive squares in only one way, i.e., 687068944 + 91204 = 26212^2 + 302^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687160141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85895015 + ... + 85895022.

It is an arithmetic number, because the mean of its divisors is an integer number (200421711).

Almost surely, 2^687160148 is an apocalyptic number.

It is an amenable number.

687160148 is a deficient number, since it is larger than the sum of its proper divisors (515370118).

687160148 is a wasteful number, since it uses less digits than its factorization.

687160148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171790041 (or 171790039 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 687160148 is about 26213.7396797939. The cubic root of 687160148 is about 882.4416300503.

The spelling of 687160148 in words is "six hundred eighty-seven million, one hundred sixty thousand, one hundred forty-eight".