140100424 has 8 divisors (see below), whose sum is σ = 262688310. Its totient is φ = 70050208.

The previous prime is 140100409. The next prime is 140100427. The reversal of 140100424 is 424001041.

It can be written as a sum of positive squares in only one way, i.e., 137311524 + 2788900 = 11718^2 + 1670^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 140100398 and 140100407.

It is not an unprimeable number, because it can be changed into a prime (140100427) by changing a digit.

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 as a sum of consecutive naturals, namely, 8756269 + ... + 8756284.

Almost surely, 2^140100424 is an apocalyptic number.

It is an amenable number.

140100424 is a deficient number, since it is larger than the sum of its proper divisors (122587886).

140100424 is a wasteful number, since it uses less digits than its factorization.

140100424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17512559 (or 17512555 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 140100424 is about 11836.4024940013. The cubic root of 140100424 is about 519.3735355175.

Adding to 140100424 its reverse (424001041), we get a palindrome (564101465).

The spelling of 140100424 in words is "one hundred forty million, one hundred thousand, four hundred twenty-four".