280152823 has 2 divisors, whose sum is σ = 280152824. Its totient is φ = 280152822.

The previous prime is 280152799. The next prime is 280152839. The reversal of 280152823 is 328251082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 280152823 - 2⁵ = 280152791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (280152623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140076411 + 140076412.

It is an arithmetic number, because the mean of its divisors is an integer number (140076412).

Almost surely, 2^280152823 is an apocalyptic number.

280152823 is a deficient number, since it is larger than the sum of its proper divisors (1).

280152823 is an equidigital number, since it uses as much as digits as its factorization.

280152823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 280152823 is about 16737.7663683061. The cubic root of 280152823 is about 654.3322628109.

The spelling of 280152823 in words is "two hundred eighty million, one hundred fifty-two thousand, eight hundred twenty-three".