140166242 has 8 divisors (see below), whose sum is σ = 210333996. Its totient is φ = 70054912.

The previous prime is 140166179. The next prime is 140166263. The reversal of 140166242 is 242661041.

It can be written as a sum of positive squares in 2 ways, for example, as 139688761 + 477481 = 11819^2 + 691^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7223 + ... + 18234.

Almost surely, 2^140166242 is an apocalyptic number.

140166242 is a deficient number, since it is larger than the sum of its proper divisors (70167754).

140166242 is a wasteful number, since it uses less digits than its factorization.

140166242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28212.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 140166242 is about 11839.1824886687. The cubic root of 140166242 is about 519.4548552229.

The spelling of 140166242 in words is "one hundred forty million, one hundred sixty-six thousand, two hundred forty-two".