1098235501157 has 2 divisors, whose sum is σ = 1098235501158. Its totient is φ = 1098235501156.

The previous prime is 1098235501087. The next prime is 1098235501159. The reversal of 1098235501157 is 7511055328901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 866064751876 + 232170749281 = 930626^2 + 481841^2 .

It is a cyclic number.

It is not a de Polignac number, because 1098235501157 - 2³⁰ = 1097161759333 is a prime.

It is a super-2 number, since 2×1098235501157² (a number of 25 digits) contains 22 as substring.

Together with 1098235501159, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1098235501159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549117750578 + 549117750579.

It is an arithmetic number, because the mean of its divisors is an integer number (549117750579).

Almost surely, 2^{1098235501157} is an apocalyptic number.

It is an amenable number.

1098235501157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1098235501157 is an equidigital number, since it uses as much as digits as its factorization.

1098235501157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378000, while the sum is 47.

The spelling of 1098235501157 in words is "one trillion, ninety-eight billion, two hundred thirty-five million, five hundred one thousand, one hundred fifty-seven".