201440432129 has 2 divisors, whose sum is σ = 201440432130. Its totient is φ = 201440432128.

The previous prime is 201440432119. The next prime is 201440432143. The reversal of 201440432129 is 921234044102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 173934873025 + 27505559104 = 417055^2 + 165848^2 .

It is a cyclic number.

It is not a de Polignac number, because 201440432129 - 2²⁰ = 201439383553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201440432095 and 201440432104.

It is not a weakly prime, because it can be changed into another prime (201440432119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100720216064 + 100720216065.

It is an arithmetic number, because the mean of its divisors is an integer number (100720216065).

Almost surely, 2^201440432129 is an apocalyptic number.

It is an amenable number.

201440432129 is a deficient number, since it is larger than the sum of its proper divisors (1).

201440432129 is an equidigital number, since it uses as much as digits as its factorization.

201440432129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 201440432129 in words is "two hundred one billion, four hundred forty million, four hundred thirty-two thousand, one hundred twenty-nine".