1061269539173 has 2 divisors, whose sum is σ = 1061269539174. Its totient is φ = 1061269539172.

The previous prime is 1061269539047. The next prime is 1061269539199. The reversal of 1061269539173 is 3719359621601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 650872992289 + 410396546884 = 806767^2 + 640622^2 .

It is a cyclic number.

It is not a de Polignac number, because 1061269539173 - 2²⁴ = 1061252761957 is a prime.

It is a super-2 number, since 2×1061269539173² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1061269539373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530634769586 + 530634769587.

It is an arithmetic number, because the mean of its divisors is an integer number (530634769587).

Almost surely, 2^{1061269539173} is an apocalyptic number.

It is an amenable number.

1061269539173 is a deficient number, since it is larger than the sum of its proper divisors (1).

1061269539173 is an equidigital number, since it uses as much as digits as its factorization.

1061269539173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1837080, while the sum is 53.

The spelling of 1061269539173 in words is "one trillion, sixty-one billion, two hundred sixty-nine million, five hundred thirty-nine thousand, one hundred seventy-three".