281428153 has 2 divisors, whose sum is σ = 281428154. Its totient is φ = 281428152.

The previous prime is 281428111. The next prime is 281428159. The reversal of 281428153 is 351824182.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 206985769 + 74442384 = 14387^2 + 8628^2 .

It is a cyclic number.

It is not a de Polignac number, because 281428153 - 2²¹ = 279331001 is a prime.

It is not a weakly prime, because it can be changed into another prime (281428159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140714076 + 140714077.

It is an arithmetic number, because the mean of its divisors is an integer number (140714077).

Almost surely, 2^281428153 is an apocalyptic number.

It is an amenable number.

281428153 is a deficient number, since it is larger than the sum of its proper divisors (1).

281428153 is an equidigital number, since it uses as much as digits as its factorization.

281428153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15360, while the sum is 34.

The square root of 281428153 is about 16775.8204866409. The cubic root of 281428153 is about 655.3236580024.

The spelling of 281428153 in words is "two hundred eighty-one million, four hundred twenty-eight thousand, one hundred fifty-three".