140103021 has 8 divisors (see below), whose sum is σ = 186871104. Its totient is φ = 93368480.

The previous prime is 140103013. The next prime is 140103023. The reversal of 140103021 is 120301041.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 140103021 - 2³ = 140103013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140102988 and 140103006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140103023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3961 + ... + 17201.

It is an arithmetic number, because the mean of its divisors is an integer number (23358888).

Almost surely, 2^140103021 is an apocalyptic number.

It is an amenable number.

140103021 is a deficient number, since it is larger than the sum of its proper divisors (46768083).

140103021 is a wasteful number, since it uses less digits than its factorization.

140103021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16771.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 140103021 is about 11836.5121974338. The cubic root of 140103021 is about 519.3767446554.

Adding to 140103021 its reverse (120301041), we get a palindrome (260404062).

The spelling of 140103021 in words is "one hundred forty million, one hundred three thousand, twenty-one".