140000051021 has 4 divisors (see below), whose sum is σ = 140003262432. Its totient is φ = 139996839612.

The previous prime is 140000051017. The next prime is 140000051047. The reversal of 140000051021 is 120150000041.

140000051021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 140000051021 - 2² = 140000051017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140000050987 and 140000051005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140000051621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1539401 + ... + 1627806.

It is an arithmetic number, because the mean of its divisors is an integer number (35000815608).

Almost surely, 2^140000051021 is an apocalyptic number.

It is an amenable number.

140000051021 is a deficient number, since it is larger than the sum of its proper divisors (3211411).

140000051021 is an equidigital number, since it uses as much as digits as its factorization.

140000051021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3211410.

The product of its (nonzero) digits is 40, while the sum is 14.

Adding to 140000051021 its reverse (120150000041), we get a palindrome (260150051062).

The spelling of 140000051021 in words is "one hundred forty billion, fifty-one thousand, twenty-one".