140115642 has 8 divisors (see below), whose sum is σ = 280231296. Its totient is φ = 46705212.

The previous prime is 140115611. The next prime is 140115653. The reversal of 140115642 is 246511041.

It is a happy number.

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

140115642 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11676298 + ... + 11676309.

It is an arithmetic number, because the mean of its divisors is an integer number (35028912).

Almost surely, 2^140115642 is an apocalyptic number.

140115642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

140115642 is a wasteful number, since it uses less digits than its factorization.

140115642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23352612.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 140115642 is about 11837.0453238973. The cubic root of 140115642 is about 519.3923399819.

Adding to 140115642 its reverse (246511041), we get a palindrome (386626683).

The spelling of 140115642 in words is "one hundred forty million, one hundred fifteen thousand, six hundred forty-two".