280153117 has 2 divisors, whose sum is σ = 280153118. Its totient is φ = 280153116.

The previous prime is 280153073. The next prime is 280153121. The reversal of 280153117 is 711351082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 249450436 + 30702681 = 15794^2 + 5541^2 .

It is a cyclic number.

It is not a de Polignac number, because 280153117 - 2⁷ = 280152989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (280151117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140076558 + 140076559.

It is an arithmetic number, because the mean of its divisors is an integer number (140076559).

Almost surely, 2^280153117 is an apocalyptic number.

It is an amenable number.

280153117 is a deficient number, since it is larger than the sum of its proper divisors (1).

280153117 is an equidigital number, since it uses as much as digits as its factorization.

280153117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 280153117 is about 16737.7751508377. The cubic root of 280153117 is about 654.3324917022.

The spelling of 280153117 in words is "two hundred eighty million, one hundred fifty-three thousand, one hundred seventeen".