1203949057 has 2 divisors, whose sum is σ = 1203949058. Its totient is φ = 1203949056.

The previous prime is 1203949001. The next prime is 1203949073. The reversal of 1203949057 is 7509493021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 813333361 + 390615696 = 28519^2 + 19764^2 .

It is an emirp because it is prime and its reverse (7509493021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1203949057 - 2¹⁵ = 1203916289 is a prime.

It is not a weakly prime, because it can be changed into another prime (1203946057) 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, 601974528 + 601974529.

It is an arithmetic number, because the mean of its divisors is an integer number (601974529).

Almost surely, 2^1203949057 is an apocalyptic number.

It is an amenable number.

1203949057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203949057 is an equidigital number, since it uses as much as digits as its factorization.

1203949057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 1203949057 is about 34697.9690616036. The cubic root of 1203949057 is about 1063.8229870343.

The spelling of 1203949057 in words is "one billion, two hundred three million, nine hundred forty-nine thousand, fifty-seven".