103040142449 has 2 divisors, whose sum is σ = 103040142450. Its totient is φ = 103040142448.

The previous prime is 103040142427. The next prime is 103040142481. The reversal of 103040142449 is 944241040301.

It is an a-pointer prime, because the next prime (103040142481) can be obtained adding 103040142449 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96436954849 + 6603187600 = 310543^2 + 81260^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103040142449 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (103040142649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51520071224 + 51520071225.

It is an arithmetic number, because the mean of its divisors is an integer number (51520071225).

Almost surely, 2^103040142449 is an apocalyptic number.

It is an amenable number.

103040142449 is a deficient number, since it is larger than the sum of its proper divisors (1).

103040142449 is an equidigital number, since it uses as much as digits as its factorization.

103040142449 is an evil number, because the sum of its binary digits is even.

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

The spelling of 103040142449 in words is "one hundred three billion, forty million, one hundred forty-two thousand, four hundred forty-nine".