140321242 has 16 divisors (see below), whose sum is σ = 216778752. Its totient is φ = 68072400.

The previous prime is 140321239. The next prime is 140321243. The reversal of 140321242 is 242123041.

It is not an unprimeable number, because it can be changed into a prime (140321243) 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 7 ways as a sum of consecutive naturals, for example, 25867 + ... + 30817.

It is an arithmetic number, because the mean of its divisors is an integer number (13548672).

Almost surely, 2^140321242 is an apocalyptic number.

140321242 is a deficient number, since it is larger than the sum of its proper divisors (76457510).

140321242 is a wasteful number, since it uses less digits than its factorization.

140321242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5373.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 140321242 is about 11845.7267400527. The cubic root of 140321242 is about 519.6462608966.

Adding to 140321242 its reverse (242123041), we get a palindrome (382444283).

The spelling of 140321242 in words is "one hundred forty million, three hundred twenty-one thousand, two hundred forty-two".