1025279 has 2 divisors, whose sum is σ = 1025280. Its totient is φ = 1025278.

The previous prime is 1025273. The next prime is 1025281. The reversal of 1025279 is 9725201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1025279 - 2¹² = 1021183 is a prime.

It is a super-3 number, since 3×1025279³ = 3233310712523377917, which contains 333 as substring.

Together with 1025281, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1025273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512639 + 512640.

It is an arithmetic number, because the mean of its divisors is an integer number (512640).

2^1025279 is an apocalyptic number.

1025279 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025279 is an equidigital number, since it uses as much as digits as its factorization.

1025279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 1025279 is about 1012.5606154695. The cubic root of 1025279 is about 100.8356310900.

It can be divided in two parts, 10252 and 79, that multiplied together give a palindrome (809908).

The spelling of 1025279 in words is "one million, twenty-five thousand, two hundred seventy-nine".