280114247 has 4 divisors (see below), whose sum is σ = 320130576. Its totient is φ = 240097920.

The previous prime is 280114229. The next prime is 280114259. The reversal of 280114247 is 742411082.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 280114247 - 2⁶ = 280114183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280114267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20008154 + ... + 20008167.

It is an arithmetic number, because the mean of its divisors is an integer number (80032644).

Almost surely, 2^280114247 is an apocalyptic number.

280114247 is a deficient number, since it is larger than the sum of its proper divisors (40016329).

280114247 is an equidigital number, since it uses as much as digits as its factorization.

280114247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40016328.

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 280114247 is about 16736.6139645987. The cubic root of 280114247 is about 654.3022283941.

The spelling of 280114247 in words is "two hundred eighty million, one hundred fourteen thousand, two hundred forty-seven".