1025228715 has 32 divisors (see below), whose sum is σ = 1912972800. Its totient is φ = 468673632.

The previous prime is 1025228713. The next prime is 1025228723. The reversal of 1025228715 is 5178225201.

It is not a de Polignac number, because 1025228715 - 2¹ = 1025228713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1025228713) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94489 + ... + 104778.

It is an arithmetic number, because the mean of its divisors is an integer number (59780400).

Almost surely, 2^1025228715 is an apocalyptic number.

1025228715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1025228715 is a deficient number, since it is larger than the sum of its proper divisors (887744085).

1025228715 is an equidigital number, since it uses as much as digits as its factorization.

1025228715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199296 (or 199282 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 33.

The square root of 1025228715 is about 32019.1929161245. The cubic root of 1025228715 is about 1008.3398256228.

The spelling of 1025228715 in words is "one billion, twenty-five million, two hundred twenty-eight thousand, seven hundred fifteen".