298727157481 has 2 divisors, whose sum is σ = 298727157482. Its totient is φ = 298727157480.

The previous prime is 298727157473. The next prime is 298727157517. The reversal of 298727157481 is 184751727892.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 180404917081 + 118322240400 = 424741^2 + 343980^2 .

It is a cyclic number.

It is not a de Polignac number, because 298727157481 - 2³ = 298727157473 is a prime.

It is a super-2 number, since 2×298727157481² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (298727157401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149363578740 + 149363578741.

It is an arithmetic number, because the mean of its divisors is an integer number (149363578741).

Almost surely, 2^298727157481 is an apocalyptic number.

It is an amenable number.

298727157481 is a deficient number, since it is larger than the sum of its proper divisors (1).

298727157481 is an equidigital number, since it uses as much as digits as its factorization.

298727157481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15805440, while the sum is 61.

The spelling of 298727157481 in words is "two hundred ninety-eight billion, seven hundred twenty-seven million, one hundred fifty-seven thousand, four hundred eighty-one".