1297538093 has 2 divisors, whose sum is σ = 1297538094. Its totient is φ = 1297538092.

The previous prime is 1297538083. The next prime is 1297538119. The reversal of 1297538093 is 3908357921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1070794729 + 226743364 = 32723^2 + 15058^2 .

It is a cyclic number.

It is not a de Polignac number, because 1297538093 - 2¹⁰ = 1297537069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1297538003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 648769046 + 648769047.

It is an arithmetic number, because the mean of its divisors is an integer number (648769047).

Almost surely, 2^1297538093 is an apocalyptic number.

It is an amenable number.

1297538093 is a deficient number, since it is larger than the sum of its proper divisors (1).

1297538093 is an equidigital number, since it uses as much as digits as its factorization.

1297538093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 1297538093 is about 36021.3560683104. The cubic root of 1297538093 is about 1090.7034969847.

The spelling of 1297538093 in words is "one billion, two hundred ninety-seven million, five hundred thirty-eight thousand, ninety-three".