279051049 has 2 divisors, whose sum is σ = 279051050. Its totient is φ = 279051048.

The previous prime is 279051023. The next prime is 279051083. The reversal of 279051049 is 940150972.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 152893225 + 126157824 = 12365^2 + 11232^2 .

It is a cyclic number.

It is not a de Polignac number, because 279051049 - 2⁷ = 279050921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 279050999 and 279051017.

It is not a weakly prime, because it can be changed into another prime (279051349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139525524 + 139525525.

It is an arithmetic number, because the mean of its divisors is an integer number (139525525).

Almost surely, 2^279051049 is an apocalyptic number.

It is an amenable number.

279051049 is a deficient number, since it is larger than the sum of its proper divisors (1).

279051049 is an equidigital number, since it uses as much as digits as its factorization.

279051049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 279051049 is about 16704.8211304402. The cubic root of 279051049 is about 653.4733584768.

The spelling of 279051049 in words is "two hundred seventy-nine million, fifty-one thousand, forty-nine".