68231560 has 32 divisors (see below), whose sum is σ = 155050200. Its totient is φ = 27020800.

The previous prime is 68231551. The next prime is 68231563. The reversal of 68231560 is 6513286.

It can be written as a sum of positive squares in 4 ways, for example, as 54199044 + 14032516 = 7362^2 + 3746^2 .

It is not an unprimeable number, because it can be changed into a prime (68231563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4405 + ... + 12484.

Almost surely, 2^68231560 is an apocalyptic number.

It is an amenable number.

68231560 is an abundant number, since it is smaller than the sum of its proper divisors (86818640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68231560 is a wasteful number, since it uses less digits than its factorization.

68231560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17001 (or 16997 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 68231560 is about 8260.2397059650. The cubic root of 68231560 is about 408.6282931548.

The spelling of 68231560 in words is "sixty-eight million, two hundred thirty-one thousand, five hundred sixty".