688020141 has 8 divisors (see below), whose sum is σ = 971322624. Its totient is φ = 431698880.

The previous prime is 688020131. The next prime is 688020163. The reversal of 688020141 is 141020886.

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

It is a cyclic number.

It is not a de Polignac number, because 688020141 - 2¹⁰ = 688019117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 688020099 and 688020108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (688020101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6745245 + ... + 6745346.

It is an arithmetic number, because the mean of its divisors is an integer number (121415328).

Almost surely, 2^688020141 is an apocalyptic number.

It is an amenable number.

688020141 is a deficient number, since it is larger than the sum of its proper divisors (283302483).

688020141 is a wasteful number, since it uses less digits than its factorization.

688020141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13490611.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 688020141 is about 26230.1380286113. The cubic root of 688020141 is about 882.8096069852.

The spelling of 688020141 in words is "six hundred eighty-eight million, twenty thousand, one hundred forty-one".