140164938 has 64 divisors (see below), whose sum is σ = 332928000. Its totient is φ = 43580592.

The previous prime is 140164897. The next prime is 140164939. The reversal of 140164938 is 839461041.

140164938 is a `hidden beast` number, since 1 + 4 + 0 + 1 + 649 + 3 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (140164939) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67723 + ... + 69761.

It is an arithmetic number, because the mean of its divisors is an integer number (5202000).

Almost surely, 2^140164938 is an apocalyptic number.

140164938 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 140164938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166464000).

140164938 is an abundant number, since it is smaller than the sum of its proper divisors (192763062).

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

140164938 is a wasteful number, since it uses less digits than its factorization.

140164938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2136 (or 2130 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 140164938 is about 11839.1274171706. The cubic root of 140164938 is about 519.4532443471.

The spelling of 140164938 in words is "one hundred forty million, one hundred sixty-four thousand, nine hundred thirty-eight".