1040255355157 has 2 divisors, whose sum is σ = 1040255355158. Its totient is φ = 1040255355156.

The previous prime is 1040255355121. The next prime is 1040255355187. The reversal of 1040255355157 is 7515535520401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 861794732241 + 178460622916 = 928329^2 + 422446^2 .

It is a cyclic number.

It is not a de Polignac number, because 1040255355157 - 2¹⁹ = 1040254830869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1040255355187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520127677578 + 520127677579.

It is an arithmetic number, because the mean of its divisors is an integer number (520127677579).

Almost surely, 2^{1040255355157} is an apocalyptic number.

It is an amenable number.

1040255355157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040255355157 is an equidigital number, since it uses as much as digits as its factorization.

1040255355157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 525000, while the sum is 43.

The spelling of 1040255355157 in words is "one trillion, forty billion, two hundred fifty-five million, three hundred fifty-five thousand, one hundred fifty-seven".