1208778283 has 2 divisors, whose sum is σ = 1208778284. Its totient is φ = 1208778282.

The previous prime is 1208778269. The next prime is 1208778299. The reversal of 1208778283 is 3828778021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1208778283 - 2²⁵ = 1175223851 is a prime.

It is a super-2 number, since 2×1208778283² = 2922289874904856178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1208278283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 604389141 + 604389142.

It is an arithmetic number, because the mean of its divisors is an integer number (604389142).

Almost surely, 2^1208778283 is an apocalyptic number.

1208778283 is a deficient number, since it is larger than the sum of its proper divisors (1).

1208778283 is an equidigital number, since it uses as much as digits as its factorization.

1208778283 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 301056, while the sum is 46.

The square root of 1208778283 is about 34767.4888796991. The cubic root of 1208778283 is about 1065.2434756727.

The spelling of 1208778283 in words is "one billion, two hundred eight million, seven hundred seventy-eight thousand, two hundred eighty-three".