281314228157 has 2 divisors, whose sum is σ = 281314228158. Its totient is φ = 281314228156.

The previous prime is 281314228121. The next prime is 281314228271. The reversal of 281314228157 is 751822413182.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157124239321 + 124189988836 = 396389^2 + 352406^2 .

It is a cyclic number.

It is not a de Polignac number, because 281314228157 - 2¹⁸ = 281313966013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (281304228157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140657114078 + 140657114079.

It is an arithmetic number, because the mean of its divisors is an integer number (140657114079).

Almost surely, 2^281314228157 is an apocalyptic number.

It is an amenable number.

281314228157 is a deficient number, since it is larger than the sum of its proper divisors (1).

281314228157 is an equidigital number, since it uses as much as digits as its factorization.

281314228157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 215040, while the sum is 44.

The spelling of 281314228157 in words is "two hundred eighty-one billion, three hundred fourteen million, two hundred twenty-eight thousand, one hundred fifty-seven".