1025434279 has 2 divisors, whose sum is σ = 1025434280. Its totient is φ = 1025434278.

The previous prime is 1025434273. The next prime is 1025434309. The reversal of 1025434279 is 9724345201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1025434279 - 2⁹ = 1025433767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1025434273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512717139 + 512717140.

It is an arithmetic number, because the mean of its divisors is an integer number (512717140).

Almost surely, 2^1025434279 is an apocalyptic number.

1025434279 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025434279 is an equidigital number, since it uses as much as digits as its factorization.

1025434279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 1025434279 is about 32022.4027674377. The cubic root of 1025434279 is about 1008.4072136807.

The spelling of 1025434279 in words is "one billion, twenty-five million, four hundred thirty-four thousand, two hundred seventy-nine".