140140170 has 24 divisors (see below), whose sum is σ = 364364676. Its totient is φ = 37370688.

The previous prime is 140140159. The next prime is 140140171. The reversal of 140140170 is 71041041.

It can be written as a sum of positive squares in 2 ways, for example, as 125417601 + 14722569 = 11199^2 + 3837^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (140140171) 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, 778467 + ... + 778646.

Almost surely, 2^140140170 is an apocalyptic number.

140140170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140140170 is an abundant number, since it is smaller than the sum of its proper divisors (224224506).

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

140140170 is a wasteful number, since it uses less digits than its factorization.

140140170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557126 (or 1557123 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 140140170 is about 11838.0813479212. The cubic root of 140140170 is about 519.4226456918.

The spelling of 140140170 in words is "one hundred forty million, one hundred forty thousand, one hundred seventy".