140172192 has 72 divisors (see below), whose sum is σ = 400966020. Its totient is φ = 46448640.

The previous prime is 140172181. The next prime is 140172199. The reversal of 140172192 is 291271041.

140172192 is a `hidden beast` number, since 1 + 401 + 72 + 192 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 90554256 + 49617936 = 9516^2 + 7044^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (140172199) 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 11 ways as a sum of consecutive naturals, for example, 50784 + ... + 53472.

Almost surely, 2^140172192 is an apocalyptic number.

140172192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140172192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200483010).

140172192 is an abundant number, since it is smaller than the sum of its proper divisors (260793828).

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

140172192 is a wasteful number, since it uses less digits than its factorization.

140172192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2886 (or 2875 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 140172192 is about 11839.4337702443. The cubic root of 140172192 is about 519.4622053347.

The spelling of 140172192 in words is "one hundred forty million, one hundred seventy-two thousand, one hundred ninety-two".