140322121 has 2 divisors, whose sum is σ = 140322122. Its totient is φ = 140322120.

The previous prime is 140322107. The next prime is 140322137. The reversal of 140322121 is 121223041.

It is an a-pointer prime, because the next prime (140322137) can be obtained adding 140322121 to its sum of digits (16).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75342400 + 64979721 = 8680^2 + 8061^2 .

It is a cyclic number.

It is not a de Polignac number, because 140322121 - 2²¹ = 138224969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140322095 and 140322104.

It is not a weakly prime, because it can be changed into another prime (140322181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70161060 + 70161061.

It is an arithmetic number, because the mean of its divisors is an integer number (70161061).

Almost surely, 2^140322121 is an apocalyptic number.

It is an amenable number.

140322121 is a deficient number, since it is larger than the sum of its proper divisors (1).

140322121 is an equidigital number, since it uses as much as digits as its factorization.

140322121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 140322121 is about 11845.7638419817. The cubic root of 140322121 is about 519.6473459500.

Adding to 140322121 its reverse (121223041), we get a palindrome (261545162).

The spelling of 140322121 in words is "one hundred forty million, three hundred twenty-two thousand, one hundred twenty-one".