1025434205 has 16 divisors (see below), whose sum is σ = 1241049600. Its totient is φ = 813350400.

The previous prime is 1025434181. The next prime is 1025434211. The reversal of 1025434205 is 5024345201.

It is a happy number.

It is not a de Polignac number, because 1025434205 - 2⁸ = 1025433949 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 541901 + ... + 543789.

It is an arithmetic number, because the mean of its divisors is an integer number (77565600).

Almost surely, 2^1025434205 is an apocalyptic number.

It is an amenable number.

1025434205 is a deficient number, since it is larger than the sum of its proper divisors (215615395).

1025434205 is a wasteful number, since it uses less digits than its factorization.

1025434205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2764.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 1025434205 is about 32022.4016119966. The cubic root of 1025434205 is about 1008.4071894236.

Adding to 1025434205 its reverse (5024345201), we get a palindrome (6049779406).

The spelling of 1025434205 in words is "one billion, twenty-five million, four hundred thirty-four thousand, two hundred five".