1025242315 has 4 divisors (see below), whose sum is σ = 1230290784. Its totient is φ = 820193848.

The previous prime is 1025242313. The next prime is 1025242321. The reversal of 1025242315 is 5132425201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1025242315 - 2¹ = 1025242313 is a prime.

It is a super-2 number, since 2×1025242315² = 2102243608933118450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1025242315.

It is not an unprimeable number, because it can be changed into a prime (1025242313) 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 3 ways as a sum of consecutive naturals, for example, 102524227 + ... + 102524236.

It is an arithmetic number, because the mean of its divisors is an integer number (307572696).

Almost surely, 2^1025242315 is an apocalyptic number.

1025242315 is a deficient number, since it is larger than the sum of its proper divisors (205048469).

1025242315 is an equidigital number, since it uses as much as digits as its factorization.

1025242315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205048468.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1025242315 is about 32019.4052880437. The cubic root of 1025242315 is about 1008.3442842575.

Adding to 1025242315 its reverse (5132425201), we get a palindrome (6157667516).

The spelling of 1025242315 in words is "one billion, twenty-five million, two hundred forty-two thousand, three hundred fifteen".