140332121 has 2 divisors, whose sum is σ = 140332122. Its totient is φ = 140332120.

The previous prime is 140332069. The next prime is 140332123. The reversal of 140332121 is 121233041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77352025 + 62980096 = 8795^2 + 7936^2 .

It is a cyclic number.

It is not a de Polignac number, because 140332121 - 2²² = 136137817 is a prime.

Together with 140332123, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140332121.

It is not a weakly prime, because it can be changed into another prime (140332123) 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 as a sum of consecutive naturals, namely, 70166060 + 70166061.

It is an arithmetic number, because the mean of its divisors is an integer number (70166061).

Almost surely, 2^140332121 is an apocalyptic number.

It is an amenable number.

140332121 is a deficient number, since it is larger than the sum of its proper divisors (1).

140332121 is an equidigital number, since it uses as much as digits as its factorization.

140332121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 140332121 is about 11846.1859262802. The cubic root of 140332121 is about 519.6596898104.

Adding to 140332121 its reverse (121233041), we get a palindrome (261565162).

The spelling of 140332121 in words is "one hundred forty million, three hundred thirty-two thousand, one hundred twenty-one".