201431449 has 2 divisors, whose sum is σ = 201431450. Its totient is φ = 201431448.

The previous prime is 201431431. The next prime is 201431467. The reversal of 201431449 is 944134102.

It is a balanced prime because it is at equal distance from previous prime (201431431) and next prime (201431467).

It can be written as a sum of positive squares in only one way, i.e., 155625625 + 45805824 = 12475^2 + 6768^2 .

It is a cyclic number.

It is not a de Polignac number, because 201431449 - 2⁹ = 201430937 is a prime.

It is not a weakly prime, because it can be changed into another prime (201432449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100715724 + 100715725.

It is an arithmetic number, because the mean of its divisors is an integer number (100715725).

Almost surely, 2^201431449 is an apocalyptic number.

It is an amenable number.

201431449 is a deficient number, since it is larger than the sum of its proper divisors (1).

201431449 is an equidigital number, since it uses as much as digits as its factorization.

201431449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 201431449 is about 14192.6547551894. The cubic root of 201431449 is about 586.1954263222.

The spelling of 201431449 in words is "two hundred one million, four hundred thirty-one thousand, four hundred forty-nine".