1025782130 has 16 divisors (see below), whose sum is σ = 1871702424. Its totient is φ = 404691840.

The previous prime is 1025782123. The next prime is 1025782133. The reversal of 1025782130 is 312875201.

It can be written as a sum of positive squares in 4 ways, for example, as 622053481 + 403728649 = 24941^2 + 20093^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1025782093 and 1025782102.

It is not an unprimeable number, because it can be changed into a prime (1025782133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 701861 + ... + 703320.

Almost surely, 2^1025782130 is an apocalyptic number.

1025782130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1025782130 is a deficient number, since it is larger than the sum of its proper divisors (845920294).

1025782130 is a wasteful number, since it uses less digits than its factorization.

1025782130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1405261.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 1025782130 is about 32027.8336763509. The cubic root of 1025782130 is about 1008.5212257985.

The spelling of 1025782130 in words is "one billion, twenty-five million, seven hundred eighty-two thousand, one hundred thirty".