1025190863 has 8 divisors (see below), whose sum is σ = 1066598400. Its totient is φ = 984304440.

The previous prime is 1025190833. The next prime is 1025190893. The reversal of 1025190863 is 3680915201.

It is an interprime number because it is at equal distance from previous prime (1025190833) and next prime (1025190893).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1025190863 - 2¹⁸ = 1024928719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025190833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126263 + ... + 134136.

It is an arithmetic number, because the mean of its divisors is an integer number (133324800).

Almost surely, 2^1025190863 is an apocalyptic number.

1025190863 is a deficient number, since it is larger than the sum of its proper divisors (41407537).

1025190863 is a wasteful number, since it uses less digits than its factorization.

1025190863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260557.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 1025190863 is about 32018.6018276876. The cubic root of 1025190863 is about 1008.3274159857.

The spelling of 1025190863 in words is "one billion, twenty-five million, one hundred ninety thousand, eight hundred sixty-three".