1025540315 has 4 divisors (see below), whose sum is σ = 1230648384. Its totient is φ = 820432248.

The previous prime is 1025540303. The next prime is 1025540429. The reversal of 1025540315 is 5130455201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5130455201 = 5851 ⋅876851.

It is a cyclic number.

It is not a de Polignac number, because 1025540315 - 2⁶ = 1025540251 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102554027 + ... + 102554036.

It is an arithmetic number, because the mean of its divisors is an integer number (307662096).

Almost surely, 2^1025540315 is an apocalyptic number.

1025540315 is a deficient number, since it is larger than the sum of its proper divisors (205108069).

1025540315 is an equidigital number, since it uses as much as digits as its factorization.

1025540315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205108068.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 1025540315 is about 32024.0583780382. The cubic root of 1025540315 is about 1008.4419709161.

Adding to 1025540315 its reverse (5130455201), we get a palindrome (6155995516).

The spelling of 1025540315 in words is "one billion, twenty-five million, five hundred forty thousand, three hundred fifteen".