140163688 has 32 divisors (see below), whose sum is σ = 301550400. Its totient is φ = 59830272.

The previous prime is 140163649. The next prime is 140163721. The reversal of 140163688 is 886361041.

It is a super-2 number, since 2×140163688² = 39291718867522688, which contains 22 as substring.

It is an unprimeable number.

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, 9523 + ... + 19261.

It is an arithmetic number, because the mean of its divisors is an integer number (9423450).

Almost surely, 2^140163688 is an apocalyptic number.

It is an amenable number.

140163688 is an abundant number, since it is smaller than the sum of its proper divisors (161386712).

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

140163688 is a wasteful number, since it uses less digits than its factorization.

140163688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10009 (or 10005 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 140163688 is about 11839.0746260001. The cubic root of 140163688 is about 519.4517001699.

The spelling of 140163688 in words is "one hundred forty million, one hundred sixty-three thousand, six hundred eighty-eight".