1025787135 has 16 divisors (see below), whose sum is σ = 1642130784. Its totient is φ = 546796032.

The previous prime is 1025787131. The next prime is 1025787137. The reversal of 1025787135 is 5317875201.

It is not a de Polignac number, because 1025787135 - 2² = 1025787131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1025787093 and 1025787102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025787131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12739 + ... + 47051.

It is an arithmetic number, because the mean of its divisors is an integer number (102633174).

Almost surely, 2^1025787135 is an apocalyptic number.

1025787135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1025787135 is a deficient number, since it is larger than the sum of its proper divisors (616343649).

1025787135 is a wasteful number, since it uses less digits than its factorization.

1025787135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36314.

The product of its (nonzero) digits is 58800, while the sum is 39.

The square root of 1025787135 is about 32027.9118114185. The cubic root of 1025787135 is about 1008.5228660560.

The spelling of 1025787135 in words is "one billion, twenty-five million, seven hundred eighty-seven thousand, one hundred thirty-five".