203190049 has 2 divisors, whose sum is σ = 203190050. Its totient is φ = 203190048.

The previous prime is 203190019. The next prime is 203190077. The reversal of 203190049 is 940091302.

It is a happy number.

It is an a-pointer prime, because the next prime (203190077) can be obtained adding 203190049 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 167573025 + 35617024 = 12945^2 + 5968^2 .

It is a cyclic number.

It is not a de Polignac number, because 203190049 - 2⁹ = 203189537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203189999 and 203190026.

It is not a weakly prime, because it can be changed into another prime (203190019) 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, 101595024 + 101595025.

It is an arithmetic number, because the mean of its divisors is an integer number (101595025).

Almost surely, 2^203190049 is an apocalyptic number.

It is an amenable number.

203190049 is a deficient number, since it is larger than the sum of its proper divisors (1).

203190049 is an equidigital number, since it uses as much as digits as its factorization.

203190049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 203190049 is about 14254.4747009492. The cubic root of 203190049 is about 587.8964147592.

The spelling of 203190049 in words is "two hundred three million, one hundred ninety thousand, forty-nine".